V4L/DVB (8152): Initial release of gspca with only one driver.

Signed-off-by: NJean-Francois Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Documentation/video4linux/gspca.txt

+Here the list of the known working cameras with gspca.
+
+The modules are:
+	gspca_main	main driver
+	gspca_xxxx	subdriver module with xxxx as follows
+
+xxxx		vend:prod
+----
+conex		0572:0041	Creative Notebook cx11646
+etoms		102c:6151	Qcam Sangha CIF
+etoms		102c:6251	Qcam xxxxxx VGA
+mars		093a:050f	Mars-Semi Pc-Camera
+ov519		041e:4052	Creative Live! VISTA IM
+ov519		041e:405f	Creative Live! VISTA VF0330
+ov519		041e:4060	Creative Live! VISTA VF0350
+ov519		041e:4061	Creative Live! VISTA VF0400
+ov519		041e:4064	Creative Live! VISTA VF0420
+ov519		041e:4068	Creative Live! VISTA VF0470
+ov519		045e:028c	Micro$oft xbox cam
+ov519		054c:0154	Sonny toy4
+ov519		054c:0155	Sonny toy5
+ov519		05a9:0519	OmniVision
+ov519		05a9:4519	OmniVision
+ov519		05a9:8519	OmniVision
+ov519		05a9:0530	OmniVision
+pac207		041e:4028	Creative Webcam Vista Plus
+pac207		093a:2460	PAC207 Qtec Webcam 100
+pac207		093a:2463	Philips spc200nc pac207
+pac207		093a:2464	Labtec Webcam 1200
+pac207		093a:2468	PAC207
+pac207		093a:2470	Genius GF112
+pac207		093a:2471	PAC207 Genius VideoCam ge111
+pac207		093a:2472	PAC207 Genius VideoCam ge110
+pac7311		093a:2600	PAC7311 Typhoon
+pac7311		093a:2601	PAC7311 Phillips SPC610NC
+pac7311		093a:2603	PAC7312
+pac7311		093a:2608	PAC7311 Trust WB-3300p
+pac7311		093a:260e	PAC7311 Gigaware VGA PC Camera, Trust WB-3350p, SIGMA cam 2350
+pac7311		093a:260f	PAC7311 SnakeCam
+sonixb		0c45:6001	Genius VideoCAM NB
+sonixb		0c45:6005	Sweex Tas5110
+sonixb		0c45:6007	Sonix sn9c101 + Tas5110D
+sonixb		0c45:6009	spcaCam@120
+sonixb		0c45:600d	spcaCam@120
+sonixb		0c45:6011	MAX Webcam (Microdia - OV6650 - SN9C101G)
+sonixb		0c45:6019	Generic Sonix OV7630
+sonixb		0c45:6024	Generic Sonix Tas5130c
+sonixb		0c45:6025	Xcam Shanga
+sonixb		0c45:6028	Sonix Btc Pc380
+sonixb		0c45:6029	spcaCam@150
+sonixb		0c45:602c	Generic Sonix OV7630
+sonixb		0c45:602d	LIC-200 LG
+sonixb		0c45:602e	Genius VideoCam Messenger
+sonixj		0458:7025	Genius Eye 311Q
+sonixj		045e:00f5	MicroSoft VX3000
+sonixj		045e:00f7	MicroSoft VX1000
+sonixj		0471:0327	Philips SPC 600 NC
+sonixj		0471:0328	Philips SPC 700 NC
+sonixj		0471:0330	Philips SPC 710NC
+sonixj		0c45:6040	Speed NVC 350K
+sonixj		0c45:607c	Sonix sn9c102p Hv7131R
+sonixj		0c45:60c0	Sangha Sn535
+sonixj		0c45:60ec	SN9C105+MO4000
+sonixj		0c45:60fb	Surfer NoName
+sonixj		0c45:60fc	LG-LIC300
+sonixj		0c45:612a	Avant Camera
+sonixj		0c45:612c	Typhoon Rasy Cam 1.3MPix
+sonixj		0c45:6130	Sonix Pccam
+sonixj		0c45:6138	Sn9c120 Mo4000
+sonixj		0c45:613b	Surfer SN-206
+sonixj		0c45:613c	Sonix Pccam168
+spca500		040a:0300	Kodak EZ200
+spca500		041e:400a	Creative PC-CAM 300
+spca500		046d:0890	Logitech QuickCam traveler
+spca500		046d:0900	Logitech Inc. ClickSmart 310
+spca500		046d:0901	Logitech Inc. ClickSmart 510
+spca500		04a5:300c	Benq DC1016
+spca500		04fc:7333	PalmPixDC85
+spca500		055f:c200	Mustek Gsmart 300
+spca500		055f:c220	Gsmart Mini
+spca500		06bd:0404	Agfa CL20
+spca500		06be:0800	Optimedia
+spca500		084d:0003	D-Link DSC-350
+spca500		08ca:0103	Aiptek PocketDV
+spca500		2899:012c	Toptro Industrial
+spca500		8086:0630	Intel Pocket PC Camera
+spca501		040a:0002	Kodak DVC-325
+spca501		0497:c001	Smile International
+spca501		0506:00df	3Com HomeConnect Lite
+spca501		0733:0401	Intel Create and Share
+spca501		0733:0402	ViewQuest M318B
+spca501		1776:501c	Arowana 300K CMOS Camera
+spca501		0000:0000	MystFromOri Unknow Camera
+spca505		041e:401d	Creative Webcam NX ULTRA
+spca505		0733:0430	Intel PC Camera Pro
+spca506		06e1:a190	ADS Instant VCD
+spca506		0734:043b	3DeMon USB Capture aka
+spca506		99fa:8988	Grandtec V.cap
+spca506		99fa:8988	Grandtec V.cap
+spca508		041e:4018	Creative Webcam Vista (PD1100)
+spca508		0461:0815	Micro Innovation IC200
+spca508		0733:0110	ViewQuest VQ110
+spca508		0af9:0010	Hama USB Sightcam 100
+spca508		0af9:0011	Hama USB Sightcam 100
+spca508		8086:0110	Intel Easy PC Camera
+spca561		041e:401a	Creative Webcam Vista (PD1100)
+spca561		041e:403b	Creative Webcam Vista (VF0010)
+spca561		0458:7004	Genius VideoCAM Express V2
+spca561		046d:0928	Logitech QC Express Etch2
+spca561		046d:0929	Labtec Webcam Elch2
+spca561		046d:092a	Logitech QC for Notebook
+spca561		046d:092b	Labtec Webcam Plus
+spca561		046d:092c	Logitech QC chat Elch2
+spca561		046d:092d	Logitech QC Elch2
+spca561		046d:092e	Logitech QC Elch2
+spca561		046d:092f	Logitech QC Elch2
+spca561		04fc:0561	Flexcam 100
+spca561		060b:a001	Maxell Compact Pc PM3
+spca561		10fd:7e50	FlyCam Usb 100
+spca561		abcd:cdee	Petcam
+stk014		05e1:0893	Syntek DV4000
+sunplus		041e:400b	Creative PC-CAM 600
+sunplus		041e:4012	PC-Cam350
+sunplus		041e:4013	Creative Pccam750
+sunplus		0458:7006	Genius Dsc 1.3 Smart
+sunplus		046d:0905	Logitech ClickSmart 820
+sunplus		046d:0960	Logitech ClickSmart 420
+sunplus		0471:0322	Philips DMVC1300K
+sunplus		04a5:3003	Benq DC 1300
+sunplus		04a5:3008	Benq DC 1500
+sunplus		04a5:300a	Benq DC3410
+sunplus		04f1:1001	JVC GC A50
+sunplus		04fc:500c	Sunplus CA500C
+sunplus		04fc:504a	Aiptek Mini PenCam 1.3
+sunplus		04fc:504b	Maxell MaxPocket LE 1.3
+sunplus		04fc:5330	Digitrex 2110
+sunplus		04fc:5360	Sunplus Generic
+sunplus		04fc:ffff	Pure DigitalDakota
+sunplus		052b:1513	Megapix V4
+sunplus		0546:3155	Polaroid PDC3070
+sunplus		0546:3191	Polaroid Ion 80
+sunplus		0546:3273	Polaroid PDC2030
+sunplus		055f:c211	Kowa Bs888e Microcamera
+sunplus		055f:c230	Mustek Digicam 330K
+sunplus		055f:c232	Mustek MDC3500
+sunplus		055f:c360	Mustek DV4000 Mpeg4
+sunplus		055f:c420	Mustek gSmart Mini 2
+sunplus		055f:c430	Mustek Gsmart LCD 2
+sunplus		055f:c440	Mustek DV 3000
+sunplus		055f:c520	Mustek gSmart Mini 3
+sunplus		055f:c530	Mustek Gsmart LCD 3
+sunplus		055f:c540	Gsmart D30
+sunplus		055f:c630	Mustek MDC4000
+sunplus		055f:c650	Mustek MDC5500Z
+sunplus		05da:1018	Digital Dream Enigma 1.3
+sunplus		06d6:0031	Trust 610 LCD PowerC@m Zoom
+sunplus		0733:1311	Digital Dream Epsilon 1.3
+sunplus		0733:1314	Mercury 2.1MEG Deluxe Classic Cam
+sunplus		0733:2211	Jenoptik jdc 21 LCD
+sunplus		0733:2221	Mercury Digital Pro 3.1p
+sunplus		0733:3261	Concord 3045 spca536a
+sunplus		0733:3281	Cyberpix S550V
+sunplus		08ca:0104	Aiptek PocketDVII 1.3
+sunplus		08ca:0106	Aiptek Pocket DV3100+
+sunplus		08ca:2008	Aiptek Mini PenCam 2 M
+sunplus		08ca:2010	Aiptek PocketCam 3M
+sunplus		08ca:2016	Aiptek PocketCam 2 Mega
+sunplus		08ca:2018	Aiptek Pencam SD 2M
+sunplus		08ca:2020	Aiptek Slim 3000F
+sunplus		08ca:2022	Aiptek Slim 3200
+sunplus		08ca:2024	Aiptek DV3500 Mpeg4
+sunplus		08ca:2028	Aiptek PocketCam4M
+sunplus		08ca:2040	Aiptek PocketDV4100M
+sunplus		08ca:2042	Aiptek PocketDV5100
+sunplus		08ca:2060	Aiptek PocketDV5300
+sunplus		0d64:0303	Sunplus FashionCam DXG
+tv8532		046d:0920	QC Express
+tv8532		046d:0921	Labtec Webcam
+tv8532		0545:808b	Veo Stingray
+tv8532		0545:8333	Veo Stingray
+tv8532		0923:010f	ICM532 cams
+vc032x		046d:0892	Logitech Orbicam
+vc032x		046d:0896	Logitech Orbicam
+vc032x		0ac8:0321	Vimicro generic vc0321
+vc032x		0ac8:0323	Vimicro Vc0323
+vc032x		0ac8:0328	A4Tech PK-130MG
+vc032x		0ac8:c001	Sony embedded vimicro
+vc032x		0ac8:c002	Sony embedded vimicro
+vc032x		17ef:4802	Lenovo Vc0323+MI1310_SOC
+zc3xx		041e:041e	Creative WebCam Live!
+zc3xx		041e:4017	Creative Webcam Mobile PD1090
+zc3xx		041e:401c	Creative NX
+zc3xx		041e:401e	Creative Nx Pro
+zc3xx		041e:401f	Creative Webcam Notebook PD1171
+zc3xx		041e:4029	Creative WebCam Vista Pro
+zc3xx		041e:4034	Creative Instant P0620
+zc3xx		041e:4035	Creative Instant P0620D
+zc3xx		041e:4036	Creative Live !
+zc3xx		041e:403a	Creative Nx Pro 2
+zc3xx		041e:4051	Creative Live!Cam Notebook Pro (VF0250)
+zc3xx		041e:4053	Creative Live!Cam Video IM
+zc3xx		0458:7007	Genius VideoCam V2
+zc3xx		0458:700c	Genius VideoCam V3
+zc3xx		0458:700f	Genius VideoCam Web V2
+zc3xx		0461:0a00	MicroInnovation WebCam320
+zc3xx		046d:08a0	Logitech QC IM
+zc3xx		046d:08a1	Logitech QC IM 0x08A1 +sound
+zc3xx		046d:08a2	Labtec Webcam Pro
+zc3xx		046d:08a3	Logitech QC Chat
+zc3xx		046d:08a6	Logitech QCim
+zc3xx		046d:08a7	Logitech QuickCam Image
+zc3xx		046d:08a9	Logitech Notebook Deluxe
+zc3xx		046d:08aa	Labtec Webcam  Notebook
+zc3xx		046d:08ac	Logitech QuickCam Cool
+zc3xx		046d:08ad	Logitech QCCommunicate STX
+zc3xx		046d:08ae	Logitech QuickCam for Notebooks
+zc3xx		046d:08af	Logitech QuickCam Cool
+zc3xx		046d:08b9	Logitech QC IM ???
+zc3xx		046d:08d7	Logitech QCam STX
+zc3xx		046d:08d9	Logitech QuickCam IM/Connect
+zc3xx		046d:08d8	Logitech Notebook Deluxe
+zc3xx		046d:08da	Logitech QuickCam Messenger
+zc3xx		046d:08dd	Logitech QuickCam for Notebooks
+zc3xx		0471:0325	Philips SPC 200 NC
+zc3xx		0471:0326	Philips SPC 300 NC
+zc3xx		0471:032d	Philips spc210nc
+zc3xx		0471:032e	Philips spc315nc
+zc3xx		055f:c005	Mustek Wcam300A
+zc3xx		055f:d003	Mustek WCam300A
+zc3xx		055f:d004	Mustek WCam300 AN
+zc3xx		0698:2003	CTX M730V built in
+zc3xx		0ac8:0302	Z-star Vimicro zc0302
+zc3xx		0ac8:301b	Z-Star zc301b
+zc3xx		0ac8:303b	Vimicro 0x303b
+zc3xx		0ac8:305b	Z-star Vimicro zc0305b
+zc3xx		0ac8:307b	Ldlc VC302+Ov7620
+zc3xx		10fd:0128	Typhoon Webshot II USB 300k 0x0128
+zc3xx		10fd:8050	Typhoon Webshot II USB 300k

drivers/media/video/Kconfig

@@ -801,6 +801,8 @@ config USB_VIDEO_CLASS
 
 	  For more information see: <http://linux-uvc.berlios.de/>
 
+source "drivers/media/video/gspca/Kconfig"
+
 source "drivers/media/video/pvrusb2/Kconfig"
 
 source "drivers/media/video/em28xx/Kconfig"

drivers/media/video/gspca/Kconfig

+config USB_GSPCA
+	tristate "USB GSPCA driver"
+	depends on VIDEO_V4L2
+	---help---
+	  Say Y here if you want support for various USB cameras.
+
+	  See <file:Documentation/video4linux/gspca.txt> for more info.
+
+	  This driver uses the Video For Linux API. You must say Y or M to
+	  "Video For Linux" to use this driver.
+
+	  To compile this driver as modules, choose M here: the
+	  modules will be called gspca_xxxx.

drivers/media/video/gspca/Makefile

+obj-$(CONFIG_GSPCA)	+= gspca_main.o gspca_stk014.o
+
+gspca_main-objs := gspca.o
+gspca_stk014-objs := stk014.o

drivers/media/video/gspca/gspca.h

+#ifndef GSPCAV2_H
+#define GSPCAV2_H
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/usb.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+
+#ifdef GSPCA_DEBUG
+/* GSPCA our debug messages */
+extern int gspca_debug;
+#define PDEBUG(level, fmt, args...) \
+	do {\
+		if (gspca_debug & (level)) \
+			printk(KERN_INFO MODULE_NAME ": " fmt "\n", ## args); \
+	} while (0)
+#define D_ERR  0x01
+#define D_PROBE 0x02
+#define D_CONF 0x04
+#define D_STREAM 0x08
+#define D_FRAM 0x10
+#define D_PACK 0x20
+#define D_USBI 0x40
+#define D_USBO 0x80
+#else
+#define PDEBUG(level, fmt, args...)
+#endif
+#undef err
+#define err(fmt, args...) \
+	do {\
+		printk(KERN_ERR MODULE_NAME ": " fmt "\n", ## args); \
+	} while (0)
+#undef info
+#define info(fmt, args...) \
+	do {\
+		printk(KERN_INFO MODULE_NAME ": " fmt "\n", ## args); \
+	} while (0)
+#undef warn
+#define warn(fmt, args...) \
+	do {\
+		printk(KERN_WARNING MODULE_NAME ": " fmt "\n", ## args); \
+	} while (0)
+
+#define GSPCA_MAX_FRAMES 16	/* maximum number of video frame buffers */
+/* ISOC transfers */
+#define NURBS 4			/* number of URBs */
+#define ISO_MAX_PKT 32		/* max number of packets in an ISOC transfer */
+#define ISO_MAX_SIZE 0x10000	/* max size of one URB buffer (64 Kb) */
+
+/* device information - set at probe time */
+struct cam_mode {
+	__u32 pixfmt;
+	short width;
+	short height;
+	short mode;		/* subdriver value */
+	short reserved;		/* subdriver value */
+};
+struct cam {
+	char *dev_name;
+	struct cam_mode *cam_mode;	/* size nmodes */
+	char nmodes;
+	__u8 epaddr;
+};
+
+struct gspca_dev;
+struct gspca_frame;
+
+/* subdriver operations */
+typedef int (*cam_op) (struct gspca_dev *);
+typedef void (*cam_v_op) (struct gspca_dev *);
+typedef int (*cam_cf_op) (struct gspca_dev *, const struct usb_device_id *);
+typedef int (*cam_jpg_op) (struct gspca_dev *,
+				struct v4l2_jpegcompression *);
+typedef int (*cam_qmnu_op) (struct gspca_dev *,
+			struct v4l2_querymenu *);
+typedef void (*cam_pkt_op) (struct gspca_dev *gspca_dev,
+				struct gspca_frame *frame,
+				unsigned char *data,
+				int len);
+
+struct ctrl {
+	struct v4l2_queryctrl qctrl;
+	int (*set)(struct gspca_dev *, __s32);
+	int (*get)(struct gspca_dev *, __s32 *);
+};
+
+/* subdriver description */
+struct sd_desc {
+/* information */
+	char *name;			/* sub-driver name */
+/* controls */
+	struct ctrl *ctrls;
+	int nctrls;
+/* operations */
+	cam_cf_op config;		/* called on probe */
+	cam_op open;			/* called on open */
+	cam_v_op start;			/* called on stream on */
+	cam_v_op stopN;			/* called on stream off - main alt */
+	cam_v_op stop0;			/* called on stream off - alt 0 */
+	cam_v_op close;			/* called on close */
+	cam_pkt_op pkt_scan;
+	cam_jpg_op get_jcomp;
+	cam_jpg_op set_jcomp;
+	cam_qmnu_op querymenu;
+};
+
+struct gspca_pktbuf {
+	char *data;
+	struct urb *urb;
+};
+
+/* packet types when moving from iso buf to frame buf */
+#define DISCARD_PACKET	0
+#define FIRST_PACKET	1
+#define INTER_PACKET	2
+#define LAST_PACKET	3
+
+struct gspca_frame {
+	unsigned char *data;		/* frame buffer */
+	unsigned char *data_end;	/* current end of frame while filling */
+	int vma_use_count;
+	struct v4l2_buffer v4l2_buf;
+};
+
+struct gspca_dev {
+	struct video_device vdev;		/* !! must be the first item */
+	struct usb_device *dev;
+
+	struct cam cam;				/* device information */
+	const struct sd_desc *sd_desc;		/* subdriver description */
+
+	struct gspca_pktbuf pktbuf[NURBS];
+
+	__u8 *frbuf;				/* buffer for nframes */
+	struct gspca_frame frame[GSPCA_MAX_FRAMES];
+	unsigned int frsz;			/* frame size */
+	char nframes;				/* number of frames */
+	char fr_i;				/* frame being filled */
+	char fr_q;				/* next frame to queue */
+	char fr_o;				/* next frame to dequeue */
+	signed char fr_queue[GSPCA_MAX_FRAMES];	/* frame queue */
+	char last_packet_type;
+
+	__u8 iface;			/* USB interface number */
+	__u8 alt;			/* USB alternate setting */
+	char curr_mode;			/* current camera mode */
+	__u32 pixfmt;			/* current mode parameters */
+	short width;
+	short height;
+
+	atomic_t nevent;		/* number of frames done */
+	wait_queue_head_t wq;		/* wait queue */
+	struct mutex usb_lock;		/* usb exchange protection */
+	struct mutex read_lock;		/* read protection */
+	struct mutex queue_lock;	/* ISOC queue protection */
+	__u32 sequence;			/* frame sequence number */
+	signed char streaming;
+	char users;			/* # open */
+	char present;			/* device connected */
+	char nbufread;			/* number of buffers for read() */
+};
+
+int gspca_dev_probe(struct usb_interface *intf,
+		const struct usb_device_id *id,
+		const struct sd_desc *sd_desc,
+		int dev_size);
+int gspca_dev_init(struct gspca_dev *gspca_dev,
+		   struct usb_interface *intf);
+void gspca_disconnect(struct usb_interface *intf);
+struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev,
+				    int packet_type,
+				    struct gspca_frame *frame,
+				    unsigned char *data,
+				    int len);
+#endif /* GSPCAV2_H */

drivers/media/video/gspca/jpeg.h

+#ifndef JPEG_H
+#define JPEG_H 1
+/*
+ * Insert a JPEG header at start of frame
+ *
+ * This module is used by the gspca subdrivers.
+ * A special case is done for Conexant webcams.
+ *
+ * Copyright (C) Jean-Francois Moine (http://moinejf.free.fr)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+/* start of jpeg frame + quantization table */
+static const unsigned char quant[][0x88] = {
+/* index 0 - Q40*/
+    {
+	0xff, 0xd8,			/* jpeg */
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,					/* quantization table part 1 */
+     20, 14, 15, 18, 15, 13, 20, 18, 16, 18, 23, 21, 20, 24, 30, 50,
+     33, 30, 28, 28, 30, 61, 44, 46, 36, 50, 73, 64, 76, 75, 71, 64,
+     70, 69, 80, 90, 115, 98, 80, 85, 109, 86, 69, 70, 100, 136, 101,
+     109,
+     119, 123, 129, 130, 129, 78, 96, 141, 151, 140, 125, 150, 115,
+     126, 129, 124,
+1,					/* quantization table part 2 */
+     21, 23, 23, 30, 26, 30, 59, 33, 33, 59, 124, 83, 70, 83, 124, 124,
+     124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+     124, 124, 124,
+     124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+     124, 124, 124,
+     124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+     124, 124, 124},
+/* index 1 - Q50 */
+    {
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+     16, 11, 12, 14, 12, 10, 16, 14, 13, 14, 18, 17, 16, 19, 24, 40,
+     26, 24, 22, 22, 24, 49, 35, 37, 29, 40, 58, 51, 61, 60, 57, 51,
+     56, 55, 64, 72, 92, 78, 64, 68, 87, 69, 55, 56, 80, 109, 81, 87,
+     95, 98, 103, 104, 103, 62, 77, 113, 121, 112, 100, 120, 92, 101,
+     103, 99,
+1,
+    17, 18, 18, 24, 21, 24, 47, 26, 26, 47, 99, 66, 56, 66, 99, 99,
+     99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
+     99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
+     99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99},
+/* index 2 Q60 */
+    {
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+     13, 9, 10, 11, 10, 8, 13, 11, 10, 11, 14, 14, 13, 15, 19, 32,
+     21, 19, 18, 18, 19, 39, 28, 30, 23, 32, 46, 41, 49, 48, 46, 41,
+     45, 44, 51, 58, 74, 62, 51, 54, 70, 55, 44, 45, 64, 87, 65, 70,
+     76, 78, 82, 83, 82, 50, 62, 90, 97, 90, 80, 96, 74, 81, 82, 79,
+1,
+     14, 14, 14, 19, 17, 19, 38, 21, 21, 38, 79, 53, 45, 53, 79, 79,
+     79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79,
+     79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79,
+     79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79},
+/* index 3 - Q70 */
+    {
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+     10, 7, 7, 8, 7, 6, 10, 8, 8, 8, 11, 10, 10, 11, 14, 24,
+     16, 14, 13, 13, 14, 29, 21, 22, 17, 24, 35, 31, 37, 36, 34, 31,
+     34, 33, 38, 43, 55, 47, 38, 41, 52, 41, 33, 34, 48, 65, 49, 52,
+     57, 59, 62, 62, 62, 37, 46, 68, 73, 67, 60, 72, 55, 61, 62, 59,
+1,
+     10, 11, 11, 14, 13, 14, 28, 16, 16, 28, 59, 40, 34, 40, 59, 59,
+     59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
+     59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
+     59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59},
+/* index 4 - Q80 */
+    {
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+      6, 4, 5, 6, 5, 4, 6, 6, 5, 6, 7, 7, 6, 8, 10, 16,
+     10, 10, 9, 9, 10, 20, 14, 15, 12, 16, 23, 20, 24, 24, 23, 20,
+     22, 22, 26, 29, 37, 31, 26, 27, 35, 28, 22, 22, 32, 44, 32, 35,
+     38, 39, 41, 42, 41, 25, 31, 45, 48, 45, 40, 48, 37, 40, 41, 40,
+1,
+      7, 7, 7, 10, 8, 10, 19, 10, 10, 19, 40, 26, 22, 26, 40, 40,
+     40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
+     40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
+     40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40},
+/* index 5 - Q85 */
+    {
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+     5, 3, 4, 4, 4, 3, 5, 4, 4, 4, 5, 5, 5, 6, 7, 12,
+     8, 7, 7, 7, 7, 15, 11, 11, 9, 12, 17, 15, 18, 18, 17, 15,
+     17, 17, 19, 22, 28, 23, 19, 20, 26, 21, 17, 17, 24, 33, 24, 26,
+     29, 29, 31, 31, 31, 19, 23, 34, 36, 34, 30, 36, 28, 30, 31, 30,
+1,
+     5, 5, 5, 7, 6, 7, 14, 8, 8, 14, 30, 20, 17, 20, 30, 30,
+     30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
+     30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
+     30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30},
+/* index 6 - 86 */
+{
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+	0x04, 0x03, 0x03, 0x04, 0x03, 0x03, 0x04, 0x04,
+	0x04, 0x04, 0x05, 0x05, 0x04, 0x05, 0x07, 0x0B,
+	0x07, 0x07, 0x06, 0x06, 0x07, 0x0E, 0x0A, 0x0A,
+	0x08, 0x0B, 0x10, 0x0E, 0x11, 0x11, 0x10, 0x0E,
+	0x10, 0x0F, 0x12, 0x14, 0x1A, 0x16, 0x12, 0x13,
+	0x18, 0x13, 0x0F, 0x10, 0x16, 0x1F, 0x17, 0x18,
+	0x1B, 0x1B, 0x1D, 0x1D, 0x1D, 0x11, 0x16, 0x20,
+	0x22, 0x1F, 0x1C, 0x22, 0x1A, 0x1C, 0x1D, 0x1C,
+1,
+	0x05, 0x05, 0x05, 0x07, 0x06, 0x07, 0x0D, 0x07,
+	0x07, 0x0D, 0x1C, 0x12, 0x10, 0x12, 0x1C, 0x1C,
+	0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C,
+	0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C,
+	0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C,
+	0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C,
+	0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C,
+	0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C,
+ },
+/* index 7 - 88 */
+{
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+	0x04, 0x03, 0x03, 0x03, 0x03, 0x02, 0x04, 0x03,
+	0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x06, 0x0A,
+	0x06, 0x06, 0x05, 0x05, 0x06, 0x0C, 0x08, 0x09,
+	0x07, 0x0A, 0x0E, 0x0C, 0x0F, 0x0E, 0x0E, 0x0C,
+	0x0D, 0x0D, 0x0F, 0x11, 0x16, 0x13, 0x0F, 0x10,
+	0x15, 0x11, 0x0D, 0x0D, 0x13, 0x1A, 0x13, 0x15,
+	0x17, 0x18, 0x19, 0x19, 0x19, 0x0F, 0x12, 0x1B,
+	0x1D, 0x1B, 0x18, 0x1D, 0x16, 0x18, 0x19, 0x18,
+1,
+	0x04, 0x04, 0x04, 0x06, 0x05, 0x06, 0x0B, 0x06,
+	0x06, 0x0B, 0x18, 0x10, 0x0D, 0x10, 0x18, 0x18,
+	0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+	0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+	0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+	0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+	0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+	0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+},
+/* index 8 - ?? */
+{
+	0xff, 0xd8,
+	0xff, 0xdb, 0x00, 0x84,		/* DQT */
+0,
+	0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+	0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x05,
+	0x03, 0x03, 0x03, 0x03, 0x03, 0x06, 0x04, 0x05,
+	0x04, 0x05, 0x07, 0x06, 0x08, 0x08, 0x07, 0x06,
+	0x07, 0x07, 0x08, 0x09, 0x0C, 0x0A, 0x08, 0x09,
+	0x0B, 0x09, 0x07, 0x07, 0x0A, 0x0E, 0x0A, 0x0B,
+	0x0C, 0x0C, 0x0D, 0x0D, 0x0D, 0x08, 0x0A, 0x0E,
+	0x0F, 0x0E, 0x0D, 0x0F, 0x0C, 0x0D, 0x0D, 0x0C,
+1,
+	0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x06, 0x03,
+	0x03, 0x06, 0x0C, 0x08, 0x07, 0x08, 0x0C, 0x0C,
+	0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C,
+	0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C,
+	0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C,
+	0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C,
+	0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C,
+	0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C
+}
+};
+
+/* huffman table + start of SOF0 */
+static unsigned char huffman[] = {
+	0xff, 0xc4, 0x01, 0xa2,
+	0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01,
+	0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+	0x07, 0x08, 0x09, 0x0a, 0x0b, 0x01, 0x00, 0x03,
+	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+	0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
+	0x0a, 0x0b, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03,
+	0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00,
+	0x00, 0x01, 0x7d, 0x01, 0x02, 0x03, 0x00, 0x04,
+	0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13,
+	0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81,
+	0x91, 0xa1, 0x08, 0x23, 0x42, 0xb1, 0xc1, 0x15,
+	0x52, 0xd1, 0xf0, 0x24, 0x33, 0x62, 0x72, 0x82,
+	0x09, 0x0a, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x25,
+	0x26, 0x27, 0x28, 0x29, 0x2a, 0x34, 0x35, 0x36,
+	0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46,
+	0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56,
+	0x57, 0x58, 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66,
+	0x67, 0x68, 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76,
+	0x77, 0x78, 0x79, 0x7a, 0x83, 0x84, 0x85, 0x86,
+	0x87, 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95,
+	0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4,
+	0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3,
+	0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2,
+	0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca,
+	0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,
+	0xda, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
+	0xe8, 0xe9, 0xea, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5,
+	0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0x11, 0x00, 0x02,
+	0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05,
+	0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01,
+	0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06,
+	0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22,
+	0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xa1, 0xb1,
+	0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0, 0x15, 0x62,
+	0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, 0xe1, 0x25,
+	0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, 0x27, 0x28,
+	0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a,
+	0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a,
+	0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a,
+	0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a,
+	0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a,
+	0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
+	0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
+	0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
+	0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
+	0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
+	0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
+	0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe2, 0xe3,
+	0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xf2,
+	0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa,
+#ifdef CONEX_CAM
+/* the Conexant frames start with SOF0 */
+#else
+	0xff, 0xc0, 0x00, 0x11,		/* SOF0 (start of frame 0 */
+	0x08,				/* data precision */
+#endif
+};
+
+#ifndef CONEX_CAM
+/* variable part:
+ *	0x01, 0xe0,			 height
+ *	0x02, 0x80,			 width
+ *	0x03,				 component number
+ *		0x01,
+ *			0x21,			samples Y
+ */
+
+/* end of header */
+static unsigned char eoh[] = {
+			0x00,		/* quant Y */
+		0x02, 0x11, 0x01,	/* samples CbCr - quant CbCr */
+		0x03, 0x11, 0x01,
+
+	0xff, 0xda, 0x00, 0x0c,		/* SOS (start of scan */
+	0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00
+};
+#endif
+
+/* -- output the JPEG header -- */
+static void jpeg_put_header(struct gspca_dev *gspca_dev,
+			    struct gspca_frame *frame,
+			    int qindex,
+			    int samplesY)
+{
+#ifndef CONEX_CAM
+	unsigned char tmpbuf[8];
+#endif
+
+	gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+			(unsigned char *) quant[qindex], sizeof quant[0]);
+	gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+			(unsigned char *) huffman, sizeof huffman);
+#ifndef CONEX_CAM
+	tmpbuf[0] = gspca_dev->height >> 8;
+	tmpbuf[1] = gspca_dev->height & 0xff;
+	tmpbuf[2] = gspca_dev->width >> 8;
+	tmpbuf[3] = gspca_dev->width & 0xff;
+	tmpbuf[4] = 0x03;		/* component number */
+	tmpbuf[5] = 0x01;		/* first component */
+	tmpbuf[6] = samplesY;
+	gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+			tmpbuf, 7);
+	gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+			eoh, sizeof eoh);
+#endif
+}
+#endif

drivers/media/video/gspca/stk014.c

+/*
+ * Syntek DV4000 (STK014) subdriver
+ *
+ * Copyright (C) Jean-Francois Moine (http://moinejf.free.fr)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define MODULE_NAME "stk014"
+
+#include "gspca.h"
+#include "jpeg.h"
+
+#define DRIVER_VERSION_NUMBER	KERNEL_VERSION(0, 0, 22)
+static const char version[] = "0.0.22";
+
+MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
+MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+/* specific webcam descriptor */
+struct sd {
+	struct gspca_dev gspca_dev;	/* !! must be the first item */
+
+	unsigned char brightness;
+	unsigned char contrast;
+	unsigned char colors;
+};
+
+/* global parameters */
+static int lightfreq = 50;
+static int sd_quant = 7;		/* <= 4 KO - 7: good (enough!) */
+
+/* V4L2 controls supported by the driver */
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
+
+static struct ctrl sd_ctrls[] = {
+#define SD_BRIGHTNESS 0
+	{
+	    {
+		.id      = V4L2_CID_BRIGHTNESS,
+		.type    = V4L2_CTRL_TYPE_INTEGER,
+		.name    = "Brightness",
+		.minimum = 0,
+		.maximum = 255,
+		.step    = 1,
+		.default_value = 127,
+	    },
+	    .set = sd_setbrightness,
+	    .get = sd_getbrightness,
+	},
+#define SD_CONTRAST 1
+	{
+	    {
+		.id      = V4L2_CID_CONTRAST,
+		.type    = V4L2_CTRL_TYPE_INTEGER,
+		.name    = "Contrast",
+		.minimum = 0,
+		.maximum = 255,
+		.step    = 1,
+		.default_value = 127,
+	    },
+	    .set = sd_setcontrast,
+	    .get = sd_getcontrast,
+	},
+#define SD_COLOR 2
+	{
+	    {
+		.id      = V4L2_CID_SATURATION,
+		.type    = V4L2_CTRL_TYPE_INTEGER,
+		.name    = "Saturation",
+		.minimum = 0,
+		.maximum = 255,
+		.step    = 1,
+		.default_value = 127,
+	    },
+	    .set = sd_setcolors,
+	    .get = sd_getcolors,
+	},
+};
+
+static struct cam_mode vga_mode[] = {
+	{V4L2_PIX_FMT_JPEG, 320, 240},
+	{V4L2_PIX_FMT_JPEG, 640, 480},
+};
+
+/* -- read a register -- */
+static int reg_read(struct gspca_dev *gspca_dev,
+			__u16 index, __u8 *buf)
+{
+	int ret;
+	struct usb_device *dev = gspca_dev->dev;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			0x00,
+			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			0x00,
+			index,
+			buf, 1,
+			500);
+	if (ret < 0)
+		PDEBUG(D_ERR, "reg_read err %d", ret);
+	return ret;
+}
+
+/* -- write a register -- */
+static int reg_write(struct gspca_dev *gspca_dev,
+			__u16 index, __u16 value)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	int ret;
+
+	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+			0x01,
+			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			value,
+			index,
+			NULL,
+			0,
+			500);
+	if (ret < 0)
+		PDEBUG(D_ERR, "reg_write err %d", ret);
+	return ret;
+}
+
+/* -- get a value -- */
+static int rcv_val(struct gspca_dev *gspca_dev,
+			int ads,
+			int len)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	int alen, ret;
+	unsigned char bulk_buf[4];
+
+	reg_write(gspca_dev, 0x634, (ads >> 16) & 0xff);
+	reg_write(gspca_dev, 0x635, (ads >> 8) & 0xff);
+	reg_write(gspca_dev, 0x636, ads & 0xff);
+	reg_write(gspca_dev, 0x637, 0);
+	reg_write(gspca_dev, 0x638, len & 0xff);
+	reg_write(gspca_dev, 0x639, len >> 8);
+	reg_write(gspca_dev, 0x63a, 0);
+	reg_write(gspca_dev, 0x63b, 0);
+	reg_write(gspca_dev, 0x630, 5);
+	if (len > sizeof bulk_buf)
+		return -1;
+	ret = usb_bulk_msg(dev,
+			usb_rcvbulkpipe(dev, 5),
+			bulk_buf,
+			len,
+			&alen,
+			500);	/* timeout in milliseconds */
+	return ret;
+}
+
+/* -- send a value -- */
+static int snd_val(struct gspca_dev *gspca_dev,
+			int ads,
+			unsigned int val)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	int alen, ret;
+	__u8 value, seq;
+	unsigned char bulk_buf[4];
+
+	if (ads == 0x003f08) {
+		ret = reg_read(gspca_dev, 0x0704, &value);
+		if (ret < 0)
+			goto ko;
+		ret = reg_read(gspca_dev, 0x0705, &seq);
+		if (ret < 0)
+			goto ko;
+		ret = reg_read(gspca_dev, 0x0650, &value);
+		if (ret < 0)
+			goto ko;
+		reg_write(gspca_dev, 0x654, seq);
+	} else
+		reg_write(gspca_dev, 0x654, (ads >> 16) & 0xff);
+	reg_write(gspca_dev, 0x655, (ads >> 8) & 0xff);
+	reg_write(gspca_dev, 0x656, ads & 0xff);
+	reg_write(gspca_dev, 0x657, 0);
+	reg_write(gspca_dev, 0x658, 0x04);	/* size */
+	reg_write(gspca_dev, 0x659, 0);
+	reg_write(gspca_dev, 0x65a, 0);
+	reg_write(gspca_dev, 0x65b, 0);
+	reg_write(gspca_dev, 0x650, 5);
+	bulk_buf[0] = (val >> 24) & 0xff;
+	bulk_buf[1] = (val >> 16) & 0xff;
+	bulk_buf[2] = (val >> 8) & 0xff;
+	bulk_buf[3] = val & 0xff;
+	ret = usb_bulk_msg(dev,
+			usb_sndbulkpipe(dev, 6),
+			bulk_buf,
+			4,
+			&alen,
+			500);	/* timeout in milliseconds */
+	if (ret < 0)
+		goto ko;
+	if (ads == 0x003f08) {
+		seq += 4;
+		seq &= 0x3f;
+		reg_write(gspca_dev, 0x705, seq);
+	}
+	return ret;
+ko:
+	PDEBUG(D_ERR, "snd_val err %d", ret);
+	return ret;
+}
+
+/* set a camera parameter */
+static int set_par(struct gspca_dev *gspca_dev,
+		   int parval)
+{
+	return snd_val(gspca_dev, 0x003f08, parval);
+}
+
+static void setbrightness(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int parval;
+
+	PDEBUG(D_CONF, "brightness: %d", sd->brightness);
+	parval = 0x06000000		/* whiteness */
+		+ (sd->brightness << 16);
+	set_par(gspca_dev, parval);
+}
+
+static void setcontrast(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int parval;
+
+	PDEBUG(D_CONF, "contrast: %d", sd->contrast);
+	parval = 0x07000000		/* contrast */
+		+ (sd->contrast << 16);
+	set_par(gspca_dev, parval);
+}
+
+static void setcolors(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	int parval;
+
+	PDEBUG(D_CONF, "saturation: %d",
+		sd->colors);
+	parval = 0x08000000		/* saturation */
+		+ (sd->colors << 16);
+	set_par(gspca_dev, parval);
+}
+
+/* this function is called at probe time */
+static int sd_config(struct gspca_dev *gspca_dev,
+			const struct usb_device_id *id)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	struct cam *cam = &gspca_dev->cam;
+
+	cam->dev_name = (char *) id->driver_info;
+	cam->epaddr = 0x02;
+	gspca_dev->cam.cam_mode = vga_mode;
+	gspca_dev->cam.nmodes = sizeof vga_mode / sizeof vga_mode[0];
+	sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
+	sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
+	sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
+	return 0;
+}
+
+/* this function is called at open time */
+static int sd_open(struct gspca_dev *gspca_dev)
+{
+	__u8 value;
+	int ret;
+
+	/* check if the device responds */
+	usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
+	ret = reg_read(gspca_dev, 0x0740, &value);
+	if (ret < 0)
+		return ret;
+	if (value != 0xff) {
+		PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", value);
+		return -1;
+	}
+	return 0;
+}
+
+/* -- start the camera -- */
+static void sd_start(struct gspca_dev *gspca_dev)
+{
+	__u8 dum;
+	int ret, value;
+
+	/* work on alternate 1 */
+	usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
+
+	set_par(gspca_dev, 0x10000000);
+	set_par(gspca_dev, 0x00000000);
+	set_par(gspca_dev, 0x8002e001);
+	set_par(gspca_dev, 0x14000000);
+	if (gspca_dev->width > 320)
+		value = 0x8002e001;		/* 640x480 */
+	else
+		value = 0x4001f000;		/* 320x240 */
+	set_par(gspca_dev, value);
+	ret = usb_set_interface(gspca_dev->dev,
+					gspca_dev->iface,
+					gspca_dev->alt);
+	if (ret < 0)
+		goto out;
+	ret = reg_read(gspca_dev, 0x0630, &dum);
+	if (ret < 0)
+		goto out;
+	rcv_val(gspca_dev, 0x000020, 4);	/* << (value ff ff ff ff) */
+	ret = reg_read(gspca_dev, 0x0650, &dum);
+	if (ret < 0)
+		goto out;
+	snd_val(gspca_dev, 0x000020, 0xffffffff);
+	reg_write(gspca_dev, 0x0620, 0);
+	reg_write(gspca_dev, 0x0630, 0);
+	reg_write(gspca_dev, 0x0640, 0);
+	reg_write(gspca_dev, 0x0650, 0);
+	reg_write(gspca_dev, 0x0660, 0);
+	setbrightness(gspca_dev);		/* whiteness */
+	setcontrast(gspca_dev);			/* contrast */
+	setcolors(gspca_dev);			/* saturation */
+	set_par(gspca_dev, 0x09800000);		/* Red ? */
+	set_par(gspca_dev, 0x0a800000);		/* Green ? */
+	set_par(gspca_dev, 0x0b800000);		/* Blue ? */
+	set_par(gspca_dev, 0x0d030000);		/* Gamma ? */
+	set_par(gspca_dev, lightfreq == 60
+			? 0x33780000		/* 60 Hz */
+			: 0x33640000);		/* 50 Hz */
+
+	/* start the video flow */
+	set_par(gspca_dev, 0x01000000);
+	set_par(gspca_dev, 0x01000000);
+	PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt);
+	return;
+out:
+	PDEBUG(D_ERR|D_STREAM, "camera start err %d", ret);
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+	struct usb_device *dev = gspca_dev->dev;
+	__u8 value;
+
+	set_par(gspca_dev, 0x02000000);
+	set_par(gspca_dev, 0x02000000);
+	usb_set_interface(dev, gspca_dev->iface, 1);
+	reg_read(gspca_dev, 0x0630, &value);
+	rcv_val(gspca_dev, 0x000020, 4);	/* << (value ff ff ff ff) */
+	reg_read(gspca_dev, 0x0650, &value);
+	snd_val(gspca_dev, 0x000020, 0xffffffff);
+	reg_write(gspca_dev, 0x0620, 0);
+	reg_write(gspca_dev, 0x0630, 0);
+	reg_write(gspca_dev, 0x0640, 0);
+	reg_write(gspca_dev, 0x0650, 0);
+	reg_write(gspca_dev, 0x0660, 0);
+	PDEBUG(D_STREAM, "camera stopped");
+}
+
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+}
+
+static void sd_close(struct gspca_dev *gspca_dev)
+{
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+			struct gspca_frame *frame,	/* target */
+			unsigned char *data,		/* isoc packet */
+			int len)			/* iso packet length */
+{
+	int l;
+
+	/* a frame starts with:
+	 *	- 0xff 0xfe
+	 *	- 0x08 0x00	// length (little endian ?!)
+	 *	- 4 bytes = size of whole frame (big endian - including header)
+	 *	- 0x00 0x0c
+	 *	- 0xff 0xd8
+	 *	- ..	JPEG image with escape sequences (ff 00)
+	 */
+	if (data[0] == 0xff && data[1] == 0xfe) {
+		if (gspca_dev->last_packet_type == INTER_PACKET) {
+			PDEBUG(D_ERR|D_FRAM, "sof actual l: %d init l: %d",
+				frame->data_end - frame->data,
+				frame->v4l2_buf.bytesused);
+		}
+
+		/* put the JPEG headaer */
+		jpeg_put_header(gspca_dev, frame, sd_quant, 0x22);
+
+		/* beginning of the frame */
+#define STKHDRSZ 12
+		l = (data[4] << 24)		/* frame size */
+			+ (data[5] << 16)
+			+ (data[6] << 8)
+			+ data[7]
+			- STKHDRSZ
+			+ (frame->data_end - frame->data)
+			+ 2;			/* EOF (ff d9) */
+		gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+				data + STKHDRSZ, len - STKHDRSZ);
+#undef STKHDRSZ
+		frame->v4l2_buf.bytesused = l;
+		return;
+	}
+	if (gspca_dev->last_packet_type != INTER_PACKET) {
+		if (gspca_dev->last_packet_type == LAST_PACKET) {
+			PDEBUG(D_ERR|D_PACK, "mof actual l: %d init l: %d",
+				frame->data_end - frame->data,
+				frame->v4l2_buf.bytesused);
+		}
+		return;
+	}
+
+	/* intermediate packet */
+	l = frame->data_end - frame->data;
+	if (len < frame->v4l2_buf.bytesused - 2 - l) {
+		gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+				data, len);
+		return;
+	}
+
+	/* last packet */
+	if (len > frame->v4l2_buf.bytesused - 2 - l)
+		len = frame->v4l2_buf.bytesused - 2 - l;
+	gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
+	gspca_frame_add(gspca_dev, LAST_PACKET, frame, "\xff\xd9", 2);
+}
+
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	sd->brightness = val;
+	if (gspca_dev->streaming)
+		setbrightness(gspca_dev);
+	return 0;
+}
+
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	*val = sd->brightness;
+	return 0;
+}
+
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	sd->contrast = val;
+	if (gspca_dev->streaming)
+		setcontrast(gspca_dev);
+	return 0;
+}
+
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	*val = sd->contrast;
+	return 0;
+}
+
+static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	sd->colors = val;
+	if (gspca_dev->streaming)
+		setcolors(gspca_dev);
+	return 0;
+}
+
+static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	*val = sd->colors;
+	return 0;
+}
+
+/* sub-driver description */
+static struct sd_desc sd_desc = {
+	.name = MODULE_NAME,
+	.ctrls = sd_ctrls,
+	.nctrls = sizeof sd_ctrls / sizeof sd_ctrls[0],
+	.config = sd_config,
+	.open = sd_open,
+	.start = sd_start,
+	.stopN = sd_stopN,
+	.stop0 = sd_stop0,
+	.close = sd_close,
+	.pkt_scan = sd_pkt_scan,
+};
+
+/* -- module initialisation -- */
+#define DVNM(name) .driver_info = (kernel_ulong_t) name
+static __devinitdata struct usb_device_id device_table[] = {
+	{USB_DEVICE(0x05e1, 0x0893), DVNM("Syntek DV4000")},
+	{}
+};
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+			const struct usb_device_id *id)
+{
+	PDEBUG(D_PROBE, "camera probe");
+	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd));
+}
+
+static struct usb_driver sd_driver = {
+	.name = MODULE_NAME,
+	.id_table = device_table,
+	.probe = sd_probe,
+	.disconnect = gspca_disconnect,
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+	if (usb_register(&sd_driver) < 0)
+		return -1;
+	info("v%s registered", version);
+	return 0;
+}
+static void __exit sd_mod_exit(void)
+{
+	usb_deregister(&sd_driver);
+	info("deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
+
+module_param(lightfreq, int, 0644);
+MODULE_PARM_DESC(lightfreq, "Light frequency 50 or 60 Hz");
+module_param_named(quant, sd_quant, int, 0644);
+MODULE_PARM_DESC(quant, "Quantization index (0..8)");