]> git.kernelconcepts.de Git - karo-tx-linux.git/commit
USB: ohci: quirk AMD prefetch for USB 1.1 ISO transfer
authorLibin Yang <libin.yang@amd.com>
Wed, 4 Nov 2009 06:55:18 +0000 (14:55 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 8 Dec 2009 19:17:27 +0000 (11:17 -0800)
commite72432d716f8555c27fc95b39969ba0a1d0c988b
tree5fe8ee69cc4374732c0ecd077871c35598b7a91b
parentd608b567459dd38ced1f3691d71520a8984f63a1
USB: ohci: quirk AMD prefetch for USB 1.1 ISO transfer

commit a1f17a872bc7b1cb7efdd5486a2963e88a536e61 upstream.

The following patch in the driver is required to avoid USB 1.1 device
failures that may occur due to requests from USB OHCI controllers may
be overwritten if the latency for any pending request by the USB
controller is very long (in the range of milliseconds).

Signed-off-by: Libin Yang <libin.yang@amd.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/host/ohci-hcd.c
drivers/usb/host/ohci-pci.c
drivers/usb/host/ohci-q.c
drivers/usb/host/ohci.h