Try reading on video device. If the camera bus driver supports reading we can try it and return the result. Also add a debug line.
Signed-off-by: Anatolij Gustschin <[email protected]> --- drivers/media/platform/soc_camera.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-) diff --git a/drivers/media/platform/soc_camera.c b/drivers/media/platform/soc_camera.c index 10b57f8..d591a42 100644 --- a/drivers/media/platform/soc_camera.c +++ b/drivers/media/platform/soc_camera.c @@ -645,9 +645,16 @@ static ssize_t soc_camera_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { struct soc_camera_device *icd = file->private_data; + struct soc_camera_host *ici = to_soc_camera_host(icd->parent); int err = -EINVAL; - dev_err(icd->pdev, "camera device read not implemented\n"); + dev_dbg(icd->pdev, "read called, buf %p\n", buf); + + if (ici->ops->init_videobuf2 && icd->vb2_vidq.io_modes & VB2_READ) + err = vb2_read(&icd->vb2_vidq, buf, count, ppos, + file->f_flags & O_NONBLOCK); + else + dev_err(icd->pdev, "camera device read not implemented\n"); return err; } -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
