V4L/DVB (10530): Documentation and code cleanups

- "DealExtreme" sells the "PCear" radio and that comes from "Sanei Electric".
- MPlayer is also usable as radio application.
- Consistent usage of tabulators and blanks in the code.
Signed-off-by: NTobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Documentation/video4linux/si470x.txt

 Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers
 
-Copyright (c) 2008 Tobias Lorenz <tobias.lorenz@gmx.net>
+Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
 
 
 Information from Silicon Labs
@@ -41,7 +41,7 @@ chips are known to work:
 - 10c4:818a: Silicon Labs USB FM Radio Reference Design
 - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF)
 - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
-- 10c5:819a: DealExtreme USB Radio
+- 10c5:819a: Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear)
 
 
 Software
@@ -52,6 +52,7 @@ Testing is usually done with most application under Debian/testing:
 - gradio - GTK FM radio tuner
 - kradio - Comfortable Radio Application for KDE
 - radio - ncurses-based radio application
+- mplayer - The Ultimate Movie Player For Linux
 
 There is also a library libv4l, which can be used. It's going to have a function
 for frequency seeking, either by using hardware functionality as in radio-si470x
@@ -69,7 +70,7 @@ Audio Listing
 USB Audio is provided by the ALSA snd_usb_audio module. It is recommended to
 also select SND_USB_AUDIO, as this is required to get sound from the radio. For
 listing you have to redirect the sound, for example using one of the following
-commands.
+commands. Please adjust the audio devices to your needs (/dev/dsp* and hw:x,x).
 
 If you just want to test audio (very poor quality):
 cat /dev/dsp1 > /dev/dsp
@@ -80,6 +81,10 @@ sox -2 --endian little -r 96000 -t oss /dev/dsp1 -t oss /dev/dsp
 If you use arts try:
 arecord -D hw:1,0 -r96000 -c2 -f S16_LE | artsdsp aplay -B -
 
+If you use mplayer try:
+mplayer -radio adevice=hw=1.0:arate=96000 \
+	-rawaudio rate=96000 \
+	radio://<frequency>/capture
 
 Module Parameters
 =================

drivers/media/radio/radio-si470x.c

@@ -5,8 +5,9 @@
  *   - Silicon Labs USB FM Radio Reference Design
  *   - ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF)
  *   - KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
+ *   - Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear)
  *
- *  Copyright (c) 2008 Tobias Lorenz <tobias.lorenz@gmx.net>
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
  *
  * 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
@@ -29,7 +30,7 @@
  * 2008-01-12	Tobias Lorenz <tobias.lorenz@gmx.net>
  *		Version 1.0.0
  *		- First working version
- * 2008-01-13   Tobias Lorenz <tobias.lorenz@gmx.net>
+ * 2008-01-13	Tobias Lorenz <tobias.lorenz@gmx.net>
  *		Version 1.0.1
  *		- Improved error handling, every function now returns errno
  *		- Improved multi user access (start/mute/stop)
@@ -145,7 +146,7 @@ static struct usb_device_id si470x_usb_driver_id_table[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
 	/* KWorld USB FM Radio SnapMusic Mobile 700 (FM700) */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x1b80, 0xd700, USB_CLASS_HID, 0, 0) },
-	/* DealExtreme USB Radio */
+	/* Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear) */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c5, 0x819a, USB_CLASS_HID, 0, 0) },
 	/* Terminating entry */
 	{ }
@@ -345,7 +346,7 @@ MODULE_PARM_DESC(rds_poll_time, "RDS poll time (ms): *40*");
 
 /* Report 19: stream */
 #define STREAM_REPORT_SIZE	3
-#define	STREAM_REPORT		19
+#define STREAM_REPORT		19
 
 /* Report 20: scratch */
 #define SCRATCH_PAGE_SIZE	63
@@ -414,7 +415,7 @@ MODULE_PARM_DESC(rds_poll_time, "RDS poll time (ms): *40*");
 
 /* bootloader commands */
 #define GET_SW_VERSION_COMMAND	0x00
-#define	SET_PAGE_COMMAND	0x01
+#define SET_PAGE_COMMAND	0x01
 #define ERASE_PAGE_COMMAND	0x02
 #define WRITE_PAGE_COMMAND	0x03
 #define CRC_ON_PAGE_COMMAND	0x04