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2caf7fcdb8
This patch (as1197) fixes an error introduced recently. Since a significant number of devices can't handle Set-Interface requests, we no longer call usb_set_interface() when a driver unbinds from an interface, provided the interface is already in altsetting 0. However the interface still does get disabled, and the call to usb_set_interface() was the only thing re-enabling it. Since the interface doesn't get re-enabled, further attempts to use it fail. So the patch adds a call to usb_enable_interface() when a driver unbinds and the interface is in altsetting 0. For this to work right, the interface's endpoints have to be re-enabled but their toggles have to be left alone. Therefore an additional argument is added to usb_enable_endpoint() and usb_enable_interface(), a flag indicating whether or not the endpoint toggles should be reset. This is a forward-ported version of a patch which fixes Bugzilla #12301. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: David Roka <roka@dawid.hu> Reported-by: Erik Ekman <erik@kryo.se> Tested-by: Erik Ekman <erik@kryo.se> Tested-by: Alon Bar-Lev <alon.barlev@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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.. | ||
buffer.c | ||
config.c | ||
devices.c | ||
devio.c | ||
driver.c | ||
endpoint.c | ||
file.c | ||
generic.c | ||
hcd-pci.c | ||
hcd.c | ||
hcd.h | ||
hub.c | ||
hub.h | ||
inode.c | ||
Kconfig | ||
Makefile | ||
message.c | ||
notify.c | ||
otg_whitelist.h | ||
quirks.c | ||
sysfs.c | ||
urb.c | ||
usb.c | ||
usb.h |