diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dvb-usb-init.c | 11 | ||||
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dvb-usb.h | 2 |
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-init.c b/drivers/media/dvb/dvb-usb/dvb-usb-init.c index 0dd90d1fe67..ffdde83d1e7 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-init.c +++ b/drivers/media/dvb/dvb-usb/dvb-usb-init.c @@ -136,7 +136,7 @@ static int dvb_usb_init(struct dvb_usb_device *d) if (d->priv == NULL) { err("no memory for priv in 'struct dvb_usb_device'"); return -ENOMEM; - } + } } /* check the capabilities and set appropriate variables */ @@ -197,8 +197,13 @@ static struct dvb_usb_device_description * dvb_usb_find_device(struct usb_device int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff) { - if (d->powered == !onoff) { - d->powered = onoff; + if (onoff) + d->powered++; + else + d->powered--; + + if (d->powered == 0 || (onoff && d->powered == 1)) { // when switching from 1 to 0 or from 0 to 1 + deb_info("power control: %d\n", onoff); if (d->props.power_ctrl) return d->props.power_ctrl(d, onoff); } diff --git a/drivers/media/dvb/dvb-usb/dvb-usb.h b/drivers/media/dvb/dvb-usb/dvb-usb.h index 2ec7c777fce..376c45a8e77 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb.h +++ b/drivers/media/dvb/dvb-usb/dvb-usb.h @@ -325,6 +325,8 @@ struct dvb_usb_adapter { * @desc: pointer to the device's struct dvb_usb_device_description. * @state: initialization and runtime state of the device. * + * @powered: indicated whether the device is power or not. + * Powered is in/decremented for each call to modify the state. * @udev: pointer to the device's struct usb_device. * * @usb_mutex: semaphore of USB control messages (reading needs two messages) |