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authorJean Delvare <khali@linux-fr.org>2008-09-07 12:56:55 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-05 05:38:49 +0400
commitbba4449c637660d5a8b2aee5ad0206df9fd6f334 (patch)
tree0ed246fe242354b8626ae8a65d11acb091a4d870
parentc014ec90bc1b951e3fff89bc6ba826b8ef0f444b (diff)
downloadlinux-bba4449c637660d5a8b2aee5ad0206df9fd6f334.tar.xz
V4L/DVB (8958): zr36067: Return proper bytes-per-line value
The zr36067 driver should return the actual bytes-per-line value when queried with ioctl VIDIOC_G_FMT, instead of 0. Otherwise user-space applications can get confused. Likewise, with ioctl VIDIOC_S_FMT, we are supposed to fill the bytes-per-line value. And we shouldn't fail if the caller sets the initial value to something different from 0. This is perfectly valid for applications to pre-fill this field with the value they expect. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/video/zoran_driver.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index ec6f59674b10..ca21bd22a02e 100644
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -2737,7 +2737,8 @@ zoran_do_ioctl (struct inode *inode,
fh->v4l_settings.format->fourcc;
fmt->fmt.pix.colorspace =
fh->v4l_settings.format->colorspace;
- fmt->fmt.pix.bytesperline = 0;
+ fmt->fmt.pix.bytesperline =
+ fh->v4l_settings.bytesperline;
if (BUZ_MAX_HEIGHT <
(fh->v4l_settings.height * 2))
fmt->fmt.pix.field =
@@ -2833,13 +2834,6 @@ zoran_do_ioctl (struct inode *inode,
fmt->fmt.pix.pixelformat,
(char *) &printformat);
- if (fmt->fmt.pix.bytesperline > 0) {
- dprintk(5,
- KERN_ERR "%s: bpl not supported\n",
- ZR_DEVNAME(zr));
- return -EINVAL;
- }
-
/* we can be requested to do JPEG/raw playback/capture */
if (!
(fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
@@ -2923,6 +2917,7 @@ zoran_do_ioctl (struct inode *inode,
fh->jpg_buffers.buffer_size =
zoran_v4l2_calc_bufsize(&fh->
jpg_settings);
+ fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.sizeimage =
fh->jpg_buffers.buffer_size;
@@ -2979,6 +2974,8 @@ zoran_do_ioctl (struct inode *inode,
/* tell the user the
* results/missing stuff */
+ fmt->fmt.pix.bytesperline =
+ fh->v4l_settings.bytesperline;
fmt->fmt.pix.sizeimage =
fh->v4l_settings.height *
fh->v4l_settings.bytesperline;