Add a new debug module parameter and use it to initialize the V4L2 debug
level for all video devices.
Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
---
drivers/media/usb/uvc/uvc_driver.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/media/usb/uvc/uvc_driver.c
b/drivers/media/usb/uvc/uvc_driver.c
index 30163432..1cae974 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -34,6 +34,7 @@
unsigned int uvc_clock_param = CLOCK_MONOTONIC;
unsigned int uvc_no_drop_param;
static unsigned int uvc_quirks_param = -1;
+static unsigned int uvc_debug_param;
unsigned int uvc_trace_param;
unsigned int uvc_timeout_param = UVC_CTRL_STREAMING_TIMEOUT;
@@ -1763,6 +1764,7 @@ static int uvc_register_video(struct uvc_device *dev,
vdev->ioctl_ops = &uvc_ioctl_ops;
vdev->release = uvc_release;
vdev->prio = &stream->chain->prio;
+ vdev->debug = uvc_debug_param;
if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
vdev->vfl_dir = VFL_DIR_TX;
strlcpy(vdev->name, dev->name, sizeof vdev->name);
@@ -2080,6 +2082,8 @@ static int uvc_clock_param_set(const char *val, struct
kernel_param *kp)
module_param_call(clock, uvc_clock_param_set, uvc_clock_param_get,
&uvc_clock_param, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(clock, "Video buffers timestamp clock");
+module_param_named(debug, uvc_debug_param, uint, S_IRUGO);
+MODULE_PARM_DESC(debug, "V4L2 debug level");
module_param_named(nodrop, uvc_no_drop_param, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(nodrop, "Don't drop incomplete frames");
module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR);
--
2.0.4
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