static int dvb_usb_init(struct dvb_usb_device *d, short *adapter_nums)
{
int ret = 0;
mutex_init(&d->data_mutex);
mutex_init(&d->usb_mutex);
mutex_init(&d->i2c_mutex);
d->state = DVB_USB_STATE_INIT;
if (d->props.size_of_priv > 0) {
d->priv = kzalloc(d->props.size_of_priv, GFP_KERNEL);
if (d->priv == NULL) {
err("no memory for priv in 'struct dvb_usb_device'");
return -ENOMEM;
}
}
/* check the capabilities and set appropriate variables */
dvb_usb_device_power_ctrl(d, 1);
if ((ret = dvb_usb_i2c_init(d)) ||
(ret = dvb_usb_adapter_init(d, adapter_nums))) {
dvb_usb_exit(d);
return ret;
}
if ((ret = dvb_usb_remote_init(d)))
err("could not initialize remote control.");
dvb_usb_device_power_ctrl(d, 0);
return 0;
}
static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
{
struct dvb_usb_adapter *adap = fe->dvb->priv;
if (adap->fe_adap[fe->id].fe_sleep)
adap->fe_adap[fe->id].fe_sleep(fe);
dvb_usb_set_active_fe(fe, 0);
return dvb_usb_device_power_ctrl(adap->dev, 0);
}
static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
{
struct dvb_usb_adapter *adap = fe->dvb->priv;
dvb_usb_device_power_ctrl(adap->dev, 1);
dvb_usb_set_active_fe(fe, 1);
if (adap->fe_adap[fe->id].fe_init)
adap->fe_adap[fe->id].fe_init(fe);
return 0;
}