USB hub: simplify remote-wakeup handling

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This patch (as817) simplifies the remote-wakeup processing in the hub
driver.  Now instead of using a specialized code path, it relies on
the standard USB resume routines.  The hub_port_resume() function does
an initial get_port_status() to see whether the port has already
resumed itself (as it does when a remote-wakeup request is sent).
This will slow down handling of other resume events slightly, but not
enough to matter.

The patch also changes the hub_port_status() routine, making it return
an error if a short reply is received.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Alan Stern 2006-11-20 11:14:30 -05:00 • committed by Greg Kroah-Hartman

parent ce3615879a

commit d25450c687

1 changed files with 20 additions and 23 deletions

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drivers/usb/core/hub.c

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