Camera test on Phosh

[edge]

Any information on the driver used for camera access?

On Mobian, only /dev/video1 claims video capture capability via the sun6i driver and no controls are reported.

Code:

mobian@mobian:~$ v4l2-ctl --list-devices cedrus (platform:cedrus): /dev/video0 /dev/media0 sun6i-csi (platform:csi): /dev/video1 mobian@mobian:~$ v4l2-ctl -d /dev/video0 -D Driver Info: Driver name      : cedrus Card type        : cedrus Bus info         : platform:cedrus Driver version   : 5.6.0 Capabilities     : 0x84208000 Video Memory-to-Memory Streaming Extended Pix Format Device Capabilities Device Caps      : 0x04208000 Video Memory-to-Memory Streaming Extended Pix Format Media Driver Info: Driver name      : cedrus Model            : cedrus Serial           : Bus info         : platform:cedrus Media version    : 5.6.0 Hardware revision: 0x00000000 (0) Driver version   : 5.6.0 Interface Info: ID               : 0x0300000c Type             : V4L Video Entity Info: ID               : 0x00000001 (1) Name             : cedrus-source Function         : V4L2 I/O Pad 0x01000002   : 0: Source  Link 0x02000008: to remote pad 0x1000004 of entity 'cedrus-proc': Data, Enabled, Immutable mobian@mobian:~$ v4l2-ctl -d /dev/media0 -D Unable to detect what device /dev/media0 is, exiting. mobian@mobian:~$ v4l2-ctl -d /dev/video1 -D Driver Info: Driver name      : sun6i-video Card type        : sun6i-csi Bus info         : platform:csi Driver version   : 5.6.0 Capabilities     : 0x84200001 Video Capture Streaming Extended Pix Format Device Capabilities Device Caps      : 0x04200001 Video Capture Streaming Extended Pix Format mobian@mobian:~$ v4l2-ctl -L Codec Controls        mpeg_2_slice_parameters 0x009909fa (unknown): type=103 flags=has-payload   mpeg_2_quantization_matrices 0x009909fb (unknown): type=104 flags=has-payload    h264_sequence_parameter_set 0x00990ce8 (unknown): type=110 flags=has-payload     h264_picture_parameter_set 0x00990ce9 (unknown): type=111 flags=has-payload            h264_scaling_matrix 0x00990cea (unknown): type=112 flags=has-payload          h264_slice_parameters 0x00990ceb (unknown): type=113 flags=has-payload         h264_decode_parameters 0x00990cec (unknown): type=114 flags=has-payload               h264_decode_mode 0x00990ced (menu)   : min=0 max=0 default=0 value=0 0: Slice-Based                h264_start_code 0x00990cee (menu)   : min=0 max=0 default=0 value=0 0: No Start Code    hevc_sequence_parameter_set 0x00990cf0 (unknown): type=120 flags=has-payload     hevc_picture_parameter_set 0x00990cf1 (unknown): type=121 flags=has-payload          hevc_slice_parameters 0x00990cf2 (unknown): type=122 flags=has-payload               hevc_decode_mode 0x00990cf7 (menu)   : min=0 max=0 default=0 value=0 0: Slice-Based                hevc_start_code 0x00990cf8 (menu)   : min=0 max=0 default=0 value=0 0: No Start Code mobian@mobian:~$ v4l2-ctl --list-formats-ext ioctl: VIDIOC_ENUM_FMT Type: Video Capture [0]: 'ST12' (Sunxi Tiled NV12 Format, compressed) [1]: 'NV12' (Y/CbCr 4:2:0)

https://twongkee.wordpress.com/2020/03/2...phone-pic/ appears to use the ov5640 driver.