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path: root/drivers/media/video/stk-webcam.c
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Diffstat (limited to 'drivers/media/video/stk-webcam.c')
-rw-r--r--drivers/media/video/stk-webcam.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c
index d1a2cefbf55..cbc105f975d 100644
--- a/drivers/media/video/stk-webcam.c
+++ b/drivers/media/video/stk-webcam.c
@@ -55,6 +55,8 @@ MODULE_AUTHOR("Jaime Velasco Juan <jsagarribay@gmail.com> and Nicolas VIVIEN");
MODULE_DESCRIPTION("Syntek DC1125 webcam driver");
+/* bool for webcam LED management */
+int first_init = 1;
/* Some cameras have audio interfaces, we aren't interested in those */
static struct usb_device_id stkwebcam_table[] = {
@@ -518,7 +520,7 @@ static int stk_prepare_sio_buffers(struct stk_camera *dev, unsigned n_sbufs)
return -ENOMEM;
for (i = 0; i < n_sbufs; i++) {
if (stk_setup_siobuf(dev, i))
- return (dev->n_sbufs > 1)? 0 : -ENOMEM;
+ return (dev->n_sbufs > 1 ? 0 : -ENOMEM);
dev->n_sbufs = i+1;
}
}
@@ -558,9 +560,14 @@ static int v4l_stk_open(struct file *fp)
vdev = video_devdata(fp);
dev = vdev_to_camera(vdev);
- if (dev == NULL || !is_present(dev)) {
+ if (dev == NULL || !is_present(dev))
return -ENXIO;
- }
+
+ if (!first_init)
+ stk_camera_write_reg(dev, 0x0, 0x24);
+ else
+ first_init = 0;
+
fp->private_data = dev;
usb_autopm_get_interface(dev->interface);
@@ -574,10 +581,12 @@ static int v4l_stk_release(struct file *fp)
if (dev->owner == fp) {
stk_stop_stream(dev);
stk_free_buffers(dev);
+ stk_camera_write_reg(dev, 0x0, 0x49); /* turn off the LED */
+ unset_initialised(dev);
dev->owner = NULL;
}
- if(is_present(dev))
+ if (is_present(dev))
usb_autopm_put_interface(dev->interface);
return 0;
@@ -654,7 +663,7 @@ static unsigned int v4l_stk_poll(struct file *fp, poll_table *wait)
return POLLERR;
if (!list_empty(&dev->sio_full))
- return (POLLIN | POLLRDNORM);
+ return POLLIN | POLLRDNORM;
return 0;
}
@@ -891,9 +900,9 @@ static int stk_vidioc_g_fmt_vid_cap(struct file *filp,
struct stk_camera *dev = priv;
int i;
- for (i = 0; i < ARRAY_SIZE(stk_sizes)
- && stk_sizes[i].m != dev->vsettings.mode;
- i++);
+ for (i = 0; i < ARRAY_SIZE(stk_sizes) &&
+ stk_sizes[i].m != dev->vsettings.mode; i++)
+ ;
if (i == ARRAY_SIZE(stk_sizes)) {
STK_ERROR("ERROR: mode invalid\n");
return -EINVAL;
@@ -1305,9 +1314,8 @@ static int stk_camera_probe(struct usb_interface *interface,
usb_set_intfdata(interface, dev);
err = stk_register_video_device(dev);
- if (err) {
+ if (err)
goto error;
- }
return 0;
@@ -1350,6 +1358,7 @@ static int stk_camera_resume(struct usb_interface *intf)
return 0;
unset_initialised(dev);
stk_initialise(dev);
+ stk_camera_write_reg(dev, 0x0, 0x49);
stk_setup_format(dev);
if (is_streaming(dev))
stk_start_stream(dev);