This makes it possible to load a EDID reported by the device
with v4l2-ctl utility:
vdev=/dev/$(grep -l '^adv748x.*hdmi$' /sys/class/video4linux/v4l-subdev*/name |cut -d/ -f5-5)
v4l2-ctl -d $vdev --set-edid=pad=0,file=/etc/adv7482.edid
Signed-off-by: Alexander Riesen <alexander.riesen@xxxxxxxxxxx>
---
drivers/media/i2c/adv748x/adv748x-hdmi.c | 27 ++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/media/i2c/adv748x/adv748x-hdmi.c b/drivers/media/i2c/adv748x/adv748x-hdmi.c
index 7655d817ceb6..88e309de3d56 100644
--- a/drivers/media/i2c/adv748x/adv748x-hdmi.c
+++ b/drivers/media/i2c/adv748x/adv748x-hdmi.c
@@ -775,7 +775,34 @@ static int adv748x_hdmi_log_status(struct v4l2_subdev *sd)
return 0;
}
+static long adv748x_hdmi_querycap(struct adv748x_hdmi *hdmi,
+ struct v4l2_capability *cap)
+{
+ struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
+
+ cap->version = LINUX_VERSION_CODE;
+ strlcpy(cap->driver, state->dev->driver->name, sizeof(cap->driver));
+ strlcpy(cap->card, "hdmi", sizeof(cap->card));
+ snprintf(cap->bus_info, sizeof(cap->bus_info), "i2c:%d-%04x",
+ i2c_adapter_id(state->client->adapter),
+ state->client->addr);
+ cap->device_caps = V4L2_CAP_AUDIO | V4L2_CAP_VIDEO_CAPTURE;
+ cap->capabilities = V4L2_CAP_DEVICE_CAPS;
+ return 0;
+}
+
+static long adv748x_hdmi_ioctl(struct v4l2_subdev *sd,
+ unsigned int cmd, void *arg)
+{
+ struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
+
+ if (cmd == VIDIOC_QUERYCAP)
+ return adv748x_hdmi_querycap(hdmi, arg);
+ return -ENOTTY;
+}
+
static const struct v4l2_subdev_core_ops adv748x_core_ops_hdmi = {
+ .ioctl = adv748x_hdmi_ioctl,
.log_status = adv748x_hdmi_log_status,
};
--
2.25.1.25.g9ecbe7eb18
