V4L/DVB (9622): tvaudio: Improve comments and remove a unneeded prototype
Some comments are not clear enough. Improve it to allow a better
understanding of the driver behavior.
While there, remove an unneeded struct prototype.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index 55b39b9..779ce7f 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -106,7 +106,6 @@
int inputmute;
int inputmask;
};
-static struct CHIPDESC chiplist[];
/* current state of the chip */
struct CHIPSTATE {
@@ -1856,11 +1855,13 @@
case VIDIOC_S_FREQUENCY:
chip->mode = 0; /* automatic */
- /* For chips that provide getmode, setmode and checkmode,
- a kthread is created to automatically to set the audio
- standard. In this case, start with MONO and wait 2 seconds
- for the decoding to stablize. Then, run kthread to change
- to stereo, if carrier detected.
+ /* For chips that provide getmode and setmode, and doesn't
+ automatically follows the stereo carrier, a kthread is
+ created to set the audio standard. In this case, when then
+ the video channel is changed, tvaudio starts on MONO mode.
+ After waiting for 2 seconds, the kernel thread is called,
+ to follow whatever audio standard is pointed by the
+ audio carrier.
*/
if (chip->thread) {
desc->setmode(chip,V4L2_TUNER_MODE_MONO);
@@ -1905,9 +1906,3 @@
.legacy_probe = chip_legacy_probe,
.id_table = chip_id,
};
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */