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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-23 21:33:02 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-23 21:33:02 +0200 |
| commit | c44dead70a841d90ddc01968012f323c33217c9e (patch) | |
| tree | 85489ebe9b9a3413cd8ee197ffb40c8aa8d97e63 /Documentation/usb/callbacks.txt | |
| parent | Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/greg... (diff) | |
| parent | USB: EHCI: Remove SPARC_LEON {read,write}_be definitions from ehci.h (diff) | |
| download | linux-c44dead70a841d90ddc01968012f323c33217c9e.tar.xz linux-c44dead70a841d90ddc01968012f323c33217c9e.zip | |
Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (205 commits)
USB: EHCI: Remove SPARC_LEON {read,write}_be definitions from ehci.h
USB: UHCI: Support big endian GRUSBHC HC
sparc: add {read,write}*_be routines
USB: UHCI: Add support for big endian descriptors
USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier
USB: UHCI: Add support for big endian mmio
usb-storage: Correct adjust_quirks to include latest flags
usb/isp1760: Fix possible unlink problems
usb/isp1760: Move function isp1760_endpoint_disable() within file.
USB: remove remaining usages of hcd->state from usbcore and fix regression
usb: musb: ux500: add configuration and build options for ux500 dma
usb: musb: ux500: add dma glue layer for ux500
usb: musb: ux500: add dma name for ux500
usb: musb: ux500: add ux500 specific code for gadget side
usb: musb: fix compile error
usb-storage: fix up the unusual_realtek device list
USB: gadget: f_audio: Fix invalid dereference of initdata
EHCI: don't rescan interrupt QHs needlessly
OHCI: fix regression caused by nVidia shutdown workaround
USB: OTG: msm: Free VCCCX regulator even if we can't set the voltage
...
Diffstat (limited to 'Documentation/usb/callbacks.txt')
| -rw-r--r-- | Documentation/usb/callbacks.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/usb/callbacks.txt b/Documentation/usb/callbacks.txt index bfb36b34b79e..9e85846bdb98 100644 --- a/Documentation/usb/callbacks.txt +++ b/Documentation/usb/callbacks.txt @@ -95,9 +95,11 @@ pre_reset int (*pre_reset)(struct usb_interface *intf); -Another driver or user space is triggering a reset on the device which -contains the interface passed as an argument. Cease IO and save any -device state you need to restore. +A driver or user space is triggering a reset on the device which +contains the interface passed as an argument. Cease IO, wait for all +outstanding URBs to complete, and save any device state you need to +restore. No more URBs may be submitted until the post_reset method +is called. If you need to allocate memory here, use GFP_NOIO or GFP_ATOMIC, if you are in atomic context. |