A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

[media] tea575x: allow multiple opens

Browse source 
Change locking to allow tea575x-radio device to be opened multiple times.

Signed-off-by: Ondrej Zary <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Ondrej Zary 2011-06-11 10:28:59 -03:00 • committed by Mauro Carvalho Chehab
commit 6a529c1a4a
2 changed files with 4 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

22
sound/i2c/other/tea575x-tuner.c
View file

@ -282,26 +282,9 @@ static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
return 0;
}
static int snd_tea575x_exclusive_open(struct file *file)
{
struct snd_tea575x *tea = video_drvdata(file);
return test_and_set_bit(0, &tea->in_use) ? -EBUSY : 0;
}
static int snd_tea575x_exclusive_release(struct file *file)
{
struct snd_tea575x *tea = video_drvdata(file);
clear_bit(0, &tea->in_use);
return 0;
}
static const struct v4l2_file_operations tea575x_fops = {
.owner = THIS_MODULE,
.open = snd_tea575x_exclusive_open,
.release = snd_tea575x_exclusive_release,
.ioctl = video_ioctl2,
.unlocked_ioctl = video_ioctl2,
};
static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
@ -340,13 +323,14 @@ int snd_tea575x_init(struct snd_tea575x *tea)
if (snd_tea575x_read(tea) != 0x55AA)
return -ENODEV;
tea->in_use = 0;
tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
tea->freq = 90500 * 16; /* 90.5Mhz default */
snd_tea575x_set_freq(tea);
tea->vd = tea575x_radio;
video_set_drvdata(&tea->vd, tea);
mutex_init(&tea->mutex);
tea->vd.lock = &tea->mutex;
v4l2_ctrl_handler_init(&tea->ctrl_handler, 1);
tea->vd.ctrl_handler = &tea->ctrl_handler;