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V4L/DVB: cx18: export a couple of symbols so they can be shared with cx18-alsa

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Expose a couple of symbols in the cx18 module so that locking of the PCM
stream can be shared with the cx18-alsa module.

This work was sponsored by ONELAN Limited.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2009-11-19 22:52:30 -03:00 committed by Mauro Carvalho Chehab
parent 4cb565cc27
commit 8ef22f794e
2 changed files with 7 additions and 2 deletions
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6
drivers/media/video/cx18/cx18-fileops.c
View file

@ -40,7 +40,7 @@
associated VBI and IDX streams are also automatically claimed.
Possible error returns: -EBUSY if someone else has claimed
the stream or 0 on success. */
static int cx18_claim_stream(struct cx18_open_id *id, int type)
int cx18_claim_stream(struct cx18_open_id *id, int type)
{
struct cx18 *cx = id->cx;
struct cx18_stream *s = &cx->streams[type];
@ -96,10 +96,11 @@ static int cx18_claim_stream(struct cx18_open_id *id, int type)
set_bit(CX18_F_S_INTERNAL_USE, &s_assoc->s_flags);
return 0;
}
EXPORT_SYMBOL(cx18_claim_stream);
/* This function releases a previously claimed stream. It will take into
account associated VBI streams. */
static void cx18_release_stream(struct cx18_stream *s)
void cx18_release_stream(struct cx18_stream *s)
{
struct cx18 *cx = s->cx;
struct cx18_stream *s_assoc;
@ -154,6 +155,7 @@ static void cx18_release_stream(struct cx18_stream *s)
}
}
}
EXPORT_SYMBOL(cx18_release_stream);
static void cx18_dualwatch(struct cx18 *cx)
{

3
drivers/media/video/cx18/cx18-fileops.h
View file

@ -34,3 +34,6 @@ void cx18_stop_capture(struct cx18_open_id *id, int gop_end);
void cx18_mute(struct cx18 *cx);
void cx18_unmute(struct cx18 *cx);
/* Shared with cx18-alsa module */
int cx18_claim_stream(struct cx18_open_id *id, int type);
void cx18_release_stream(struct cx18_stream *s);