From: Hans Verkuil <hverkuil@xs4all.nl>
To: linux-media@vger.kernel.org
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Subject: [RFCv1 PATCH 2/6] ivtv: only start streaming in poll() if polling for input.
Date: Wed, 13 Jul 2011 11:39:00 +0200 [thread overview]
Message-ID: <02e4da34abb92931fd33ddf885476e14d230275c.1310549521.git.hans.verkuil@cisco.com> (raw)
In-Reply-To: <1310549944-23756-1-git-send-email-hverkuil@xs4all.nl>
In-Reply-To: <bec0b6db54a6b435d219e5ad2d9f010848dd8c2b.1310549521.git.hans.verkuil@cisco.com>
From: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
drivers/media/video/ivtv/ivtv-fileops.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c
index 38f0522..a931ecf 100644
--- a/drivers/media/video/ivtv/ivtv-fileops.c
+++ b/drivers/media/video/ivtv/ivtv-fileops.c
@@ -744,8 +744,9 @@ unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait)
return res;
}
-unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait)
+unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table *wait)
{
+ unsigned long req_events = poll_requested_events(wait);
struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
@@ -753,7 +754,8 @@ unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait)
unsigned res = 0;
/* Start a capture if there is none */
- if (!eof && !test_bit(IVTV_F_S_STREAMING, &s->s_flags)) {
+ if (!eof && !test_bit(IVTV_F_S_STREAMING, &s->s_flags) &&
+ (req_events & (POLLIN | POLLRDNORM))) {
int rc;
mutex_lock(&itv->serialize_lock);
--
1.7.1
next prev parent reply other threads:[~2011-07-13 9:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-13 9:38 [RFCv1 PATCH 0/6] Don't start streaming unless requested by the poll mask Hans Verkuil
2011-07-13 9:38 ` [RFCv1 PATCH 1/6] poll: add poll_requested_events() function Hans Verkuil
2011-07-13 9:39 ` Hans Verkuil [this message]
2011-07-13 9:39 ` [RFCv1 PATCH 3/6] videobuf2: only start streaming in poll() if so requested by the poll mask Hans Verkuil
2011-07-18 6:30 ` Marek Szyprowski
2011-07-20 3:41 ` Pawel Osciak
2011-07-13 9:39 ` [RFCv1 PATCH 4/6] videobuf: " Hans Verkuil
2011-07-13 9:39 ` [RFCv1 PATCH 5/6] videobuf2-core: also test for pending events Hans Verkuil
2011-07-18 6:30 ` Marek Szyprowski
2011-07-20 3:39 ` Pawel Osciak
2011-07-13 9:39 ` [RFCv1 PATCH 6/6] vivi: let vb2_poll handle events Hans Verkuil
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