@@ -645,11 +645,17 @@ 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;
- int err = -EINVAL;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+
+ dev_dbg(icd->pdev, "read called, buf %p\n", buf);
+
+ if (ici->ops->init_videobuf2 && icd->vb2_vidq.io_modes & VB2_READ)
+ return vb2_read(&icd->vb2_vidq, buf, count, ppos,
+ file->f_flags & O_NONBLOCK);
dev_err(icd->pdev, "camera device read not implemented\n");
- return err;
+ return -EINVAL;
}
static int soc_camera_mmap(struct file *file, struct vm_area_struct *vma)
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 <agust@denx.de> --- v3: - simplified as suggested by Guennadi v2: - rebased on current staging/for_v3.7 branch drivers/media/platform/soc_camera/soc_camera.c | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-)