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V4L/DVB (9218): si470x: removement of get/set input/audio

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This patch removes the unnecessary get/set input/audio functions.

The reason is, that the V4L2 specification says, that if input or audio
cannot be switched anyway, the functions doesn't need to be implemented.

I've tested the new driver with all current radio programs in
Debian/testing and found no problems with that.

In my opinion, the driver is much cleaner by removing these unnecessary
functions.

Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Tobias Lorenz 2008-09-24 19:33:09 -03:00 committed by Mauro Carvalho Chehab
parent 73a529f9a6
commit 617f53336c
1 changed files with 4 additions and 68 deletions
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72
drivers/media/radio/radio-si470x.c
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@ -1215,36 +1215,6 @@ static int si470x_vidioc_querycap(struct file *file, void *priv,
}
/*
* si470x_vidioc_g_input - get input
*/
static int si470x_vidioc_g_input(struct file *file, void *priv,
unsigned int *i)
{
*i = 0;
return 0;
}
/*
* si470x_vidioc_s_input - set input
*/
static int si470x_vidioc_s_input(struct file *file, void *priv, unsigned int i)
{
int retval = 0;
/* safety checks */
if (i != 0)
retval = -EINVAL;
if (retval < 0)
printk(KERN_WARNING DRIVER_NAME
": set input failed with %d\n", retval);
return retval;
}
/*
* si470x_vidioc_queryctrl - enumerate control items
*/
@ -1364,44 +1334,13 @@ done:
static int si470x_vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *audio)
{
int retval = 0;
/* safety checks */
if (audio->index != 0) {
retval = -EINVAL;
goto done;
}
/* driver constants */
audio->index = 0;
strcpy(audio->name, "Radio");
audio->capability = V4L2_AUDCAP_STEREO;
audio->mode = 0;
done:
if (retval < 0)
printk(KERN_WARNING DRIVER_NAME
": get audio failed with %d\n", retval);
return retval;
}
/*
* si470x_vidioc_s_audio - set audio attributes
*/
static int si470x_vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *audio)
{
int retval = 0;
/* safety checks */
if (audio->index != 0) {
retval = -EINVAL;
goto done;
}
done:
if (retval < 0)
printk(KERN_WARNING DRIVER_NAME
": set audio failed with %d\n", retval);
return retval;
return 0;
}
@ -1613,13 +1552,10 @@ done:
*/
static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
.vidioc_querycap = si470x_vidioc_querycap,
.vidioc_g_input = si470x_vidioc_g_input,
.vidioc_s_input = si470x_vidioc_s_input,
.vidioc_queryctrl = si470x_vidioc_queryctrl,
.vidioc_g_ctrl = si470x_vidioc_g_ctrl,
.vidioc_s_ctrl = si470x_vidioc_s_ctrl,
.vidioc_g_audio = si470x_vidioc_g_audio,
.vidioc_s_audio = si470x_vidioc_s_audio,
.vidioc_g_tuner = si470x_vidioc_g_tuner,
.vidioc_s_tuner = si470x_vidioc_s_tuner,
.vidioc_g_frequency = si470x_vidioc_g_frequency,