diff options
| author | Dan Williams <dcbw@redhat.com> | 2013-05-06 11:29:23 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-05-08 13:13:29 -0700 |
| commit | 6eecdc5f95a393cb558503123eae9a9a6642e835 (patch) | |
| tree | 80898f0029def8f64ce43837cc6c60010ba17efe /include/media/v4l2-chip-ident.h | |
| parent | 7fdb7846c9ca6fc06e380de0976a1228703b498a (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 'include/media/v4l2-chip-ident.h')
0 files changed, 0 insertions, 0 deletions