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authorDan Williams <dcbw@redhat.com>2013-05-06 11:29:23 +0000
committerDavid S. Miller <davem@davemloft.net>2013-05-08 13:13:29 -0700
commit6eecdc5f95a393cb558503123eae9a9a6642e835 (patch)
tree80898f0029def8f64ce43837cc6c60010ba17efe /crypto/cast_common.c
parent7fdb7846c9ca6fc06e380de0976a1228703b498a (diff)
usbnet: allow status interrupt URB to always be active
Some drivers (sierra_net) need the status interrupt URB active even when the device is closed, because they receive custom indications from firmware. Add functions to refcount the status interrupt URB submit/kill operation so that sub-drivers and the generic driver don't fight over whether the status interrupt URB is active or not. A sub-driver can call usbnet_status_start() at any time, but the URB is only submitted the first time the function is called. Likewise, when the sub-driver is done with the URB, it calls usbnet_status_stop() but the URB is only killed when all users have stopped it. The URB is still killed and re-submitted for suspend/resume, as before, with the same refcount it had at suspend. Signed-off-by: Dan Williams <dcbw@redhat.com> Acked-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto/cast_common.c')
0 files changed, 0 insertions, 0 deletions