From bba4449c637660d5a8b2aee5ad0206df9fd6f334 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 7 Sep 2008 05:56:55 -0300 Subject: [PATCH] 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/zoran_driver.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c index ec6f59674b1..ca21bd22a02 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; -- 2.41.1