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authorAlan Stern <stern@rowland.harvard.edu>2008-03-03 15:15:51 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:32 -0700
commit5e6effaed6da94e727cd45f945ad2489af8570b3 (patch)
tree2995db2a93c931f3e4a7e4e3203870d5d7f93eb6 /Documentation/usb
parent3eb14915a300f539f271e3716f2421bb0697ed48 (diff)
USB: make USB-PERSIST work after every system sleep
This patch (as1046) makes USB-PERSIST work more in accordance with the documentation. Currently it takes effect only in cases where the root hub has lost power or been reset, but it is supposed to operate whenever a power session was dropped during a system sleep. A new hub_restart() routine carries out the duties required during a reset or a reset-resume. It checks to see whether occupied ports are still enabled, and if they aren't then it clears the enable-change and connect-change features (to prevent interference by khubd) and sets the child device's reset_resume flag. It also checks ports that are supposed to be unoccupied to verify that the firmware hasn't left the port in an enabled state. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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