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| author | Alan Stern <stern@rowland.harvard.edu> | 2008-04-28 17:06:11 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-07-22 00:15:47 +0200 |
| commit | b01b03f3ad82b4293f6ca4da9b2692b6a377c609 (patch) | |
| tree | 9d3ab94600f6fa0491256ab1ac0fd824e55ee880 /drivers/ata/pdc_adma.c | |
| parent | USB: use get_unaligned_* helpers for kl5kusb105 driver (diff) | |
| download | linux-b01b03f3ad82b4293f6ca4da9b2692b6a377c609.tar.xz linux-b01b03f3ad82b4293f6ca4da9b2692b6a377c609.zip | |
USB: add new routine for checking port-resume type
This patch (as1070) creates a new subroutine to check whether a device
can be resumed. This code is needed even when CONFIG_USB_SUSPEND
isn't set, because devices do suspend themselves when the root hub
(and hence the entire bus) is suspended, and power sessions can get
lost during a system sleep even without individual port suspends.
The patch also fixes a loose end in USB-Persist reset-resume handling.
When a low- or full-speed device is attached to an EHCI's companion
controller, the port handoff during resume will cause the companion
port's connect-status-change feature to be set. If that flag isn't
cleared, the port-reset code will think it indicates that the device
has been unplugged and the reset-resume will fail.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/ata/pdc_adma.c')
0 files changed, 0 insertions, 0 deletions