- 13 10月, 2007 1 次提交
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由 Alan Stern 提交于
This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: NAlan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 23 8月, 2007 1 次提交
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由 Paul Mundt 提交于
Currently when registration fails we're left with a stray reference to release_mem_region(), this leads to the following case: r8a66597_hcd r8a66597_hcd: irq 13, io base 0x18040000 drivers/usb/host/r8a66597-hcd.c: register access fail. r8a66597_hcd r8a66597_hcd: startup error -6 r8a66597_hcd r8a66597_hcd: USB bus 1 deregistered drivers/usb/host/r8a66597-hcd.c: Failed to add hcd Trying to free nonexistent resource <0000000018040000-0000000018040000> This fixes it up. Signed-off-by: NPaul Mundt <lethal@linux-sh.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 20 7月, 2007 1 次提交
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由 Yoshihiro Shimoda 提交于
This patch incorporates some updates. Updates include: - Fix the problem that control transfer might fail - Change from GFP_KERNEL to GFP_ATOMIC - Clean up some coding style issue Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 13 7月, 2007 2 次提交
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由 Yoshihiro Shimoda 提交于
This patch fixes the problem that accesses NULL pointer when disconnected a cable while play music with usb-speaker. Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Yoshihiro Shimoda 提交于
I would like to submit Renesas R8A66597 USB HCD driver. R8A66597 is Renesas USB 2.0 host and peripheral combined controller device originally designed for embedded products. As a limitation of this device, it does not support externel hub more than 2 tier, and cannot communicate with a USB device more than 10. Then this device is not compatible with EHCI and/or OHCI, I wrote driver support patch based on sl811 code. This driver has the following unique specifications: - Implement transfer timeout to share one pipe with plural endpoint. - Detach detection of a USB device connected to externel hub. The driver has been tested external hub, usb-hdd, usb-cdrom, usb-speaker, mice, keyboard, and usbtest driver. Signed-off-by : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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