V4L/DVB: cx18: export a couple of symbols so they can be shared with cx18-alsa
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>
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@ -40,7 +40,7 @@
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associated VBI and IDX streams are also automatically claimed.
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Possible error returns: -EBUSY if someone else has claimed
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the stream or 0 on success. */
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static int cx18_claim_stream(struct cx18_open_id *id, int type)
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int cx18_claim_stream(struct cx18_open_id *id, int type)
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{
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struct cx18 *cx = id->cx;
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struct cx18_stream *s = &cx->streams[type];
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@ -96,10 +96,11 @@ static int cx18_claim_stream(struct cx18_open_id *id, int type)
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set_bit(CX18_F_S_INTERNAL_USE, &s_assoc->s_flags);
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return 0;
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}
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EXPORT_SYMBOL(cx18_claim_stream);
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/* This function releases a previously claimed stream. It will take into
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account associated VBI streams. */
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static void cx18_release_stream(struct cx18_stream *s)
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void cx18_release_stream(struct cx18_stream *s)
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{
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struct cx18 *cx = s->cx;
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struct cx18_stream *s_assoc;
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@ -154,6 +155,7 @@ static void cx18_release_stream(struct cx18_stream *s)
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}
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}
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}
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EXPORT_SYMBOL(cx18_release_stream);
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static void cx18_dualwatch(struct cx18 *cx)
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{
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@ -34,3 +34,6 @@ void cx18_stop_capture(struct cx18_open_id *id, int gop_end);
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void cx18_mute(struct cx18 *cx);
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void cx18_unmute(struct cx18 *cx);
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/* Shared with cx18-alsa module */
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int cx18_claim_stream(struct cx18_open_id *id, int type);
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void cx18_release_stream(struct cx18_stream *s);
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