diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/usb/airspy/airspy.c | 2 | ||||
| -rw-r--r-- | drivers/media/usb/hackrf/hackrf.c | 13 | ||||
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-flash-led-class.c | 8 |
3 files changed, 17 insertions, 6 deletions
diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c index b5595ca81189..0d4ac5947f3a 100644 --- a/drivers/media/usb/airspy/airspy.c +++ b/drivers/media/usb/airspy/airspy.c @@ -134,7 +134,7 @@ struct airspy { int urbs_submitted; /* USB control message buffer */ - #define BUF_SIZE 24 + #define BUF_SIZE 128 u8 buf[BUF_SIZE]; /* Current configuration */ diff --git a/drivers/media/usb/hackrf/hackrf.c b/drivers/media/usb/hackrf/hackrf.c index d7a3aa2029d2..9e700caf0d66 100644 --- a/drivers/media/usb/hackrf/hackrf.c +++ b/drivers/media/usb/hackrf/hackrf.c @@ -24,6 +24,15 @@ #include <media/videobuf2-v4l2.h> #include <media/videobuf2-vmalloc.h> +/* + * Used Avago MGA-81563 RF amplifier could be destroyed pretty easily with too + * strong signal or transmitting to bad antenna. + * Set RF gain control to 'grabbed' state by default for sure. + */ +static bool hackrf_enable_rf_gain_ctrl; +module_param_named(enable_rf_gain_ctrl, hackrf_enable_rf_gain_ctrl, bool, 0644); +MODULE_PARM_DESC(enable_rf_gain_ctrl, "enable RX/TX RF amplifier control (warn: could damage amplifier)"); + /* HackRF USB API commands (from HackRF Library) */ enum { CMD_SET_TRANSCEIVER_MODE = 0x01, @@ -1451,6 +1460,7 @@ static int hackrf_probe(struct usb_interface *intf, dev_err(dev->dev, "Could not initialize controls\n"); goto err_v4l2_ctrl_handler_free_rx; } + v4l2_ctrl_grab(dev->rx_rf_gain, !hackrf_enable_rf_gain_ctrl); v4l2_ctrl_handler_setup(&dev->rx_ctrl_handler); /* Register controls for transmitter */ @@ -1471,6 +1481,7 @@ static int hackrf_probe(struct usb_interface *intf, dev_err(dev->dev, "Could not initialize controls\n"); goto err_v4l2_ctrl_handler_free_tx; } + v4l2_ctrl_grab(dev->tx_rf_gain, !hackrf_enable_rf_gain_ctrl); v4l2_ctrl_handler_setup(&dev->tx_ctrl_handler); /* Register the v4l2_device structure */ @@ -1530,7 +1541,7 @@ err_v4l2_ctrl_handler_free_rx: err_kfree: kfree(dev); err: - dev_dbg(dev->dev, "failed=%d\n", ret); + dev_dbg(&intf->dev, "failed=%d\n", ret); return ret; } diff --git a/drivers/media/v4l2-core/v4l2-flash-led-class.c b/drivers/media/v4l2-core/v4l2-flash-led-class.c index 13d5a36bc5d8..fc5ff8b215f9 100644 --- a/drivers/media/v4l2-core/v4l2-flash-led-class.c +++ b/drivers/media/v4l2-core/v4l2-flash-led-class.c @@ -107,10 +107,10 @@ static void v4l2_flash_set_led_brightness(struct v4l2_flash *v4l2_flash, if (ctrls[LED_MODE]->val != V4L2_FLASH_LED_MODE_TORCH) return; - led_set_brightness(&v4l2_flash->fled_cdev->led_cdev, + led_set_brightness_sync(&v4l2_flash->fled_cdev->led_cdev, brightness); } else { - led_set_brightness(&v4l2_flash->iled_cdev->led_cdev, + led_set_brightness_sync(&v4l2_flash->iled_cdev->led_cdev, brightness); } } @@ -206,11 +206,11 @@ static int v4l2_flash_s_ctrl(struct v4l2_ctrl *c) case V4L2_CID_FLASH_LED_MODE: switch (c->val) { case V4L2_FLASH_LED_MODE_NONE: - led_set_brightness(led_cdev, LED_OFF); + led_set_brightness_sync(led_cdev, LED_OFF); return led_set_flash_strobe(fled_cdev, false); case V4L2_FLASH_LED_MODE_FLASH: /* Turn the torch LED off */ - led_set_brightness(led_cdev, LED_OFF); + led_set_brightness_sync(led_cdev, LED_OFF); if (ctrls[STROBE_SOURCE]) { external_strobe = (ctrls[STROBE_SOURCE]->val == V4L2_FLASH_STROBE_SOURCE_EXTERNAL); |