Searched hist:"6 eecdc5f95a393cb558503123eae9a9a6642e835" (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/include/linux/usb/ |
H A D | usbnet.h | diff 6eecdc5f95a393cb558503123eae9a9a6642e835 Mon May 06 06:29:23 CDT 2013 Dan Williams <dcbw@redhat.com> 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>
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/openbmc/linux/drivers/net/usb/ |
H A D | usbnet.c | diff 6eecdc5f95a393cb558503123eae9a9a6642e835 Mon May 06 06:29:23 CDT 2013 Dan Williams <dcbw@redhat.com> 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>
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