@veye_xumm

Hello my friend.
We are sending I2C commands via a FPGA.

1_ Writing 0xff to 0x000b solved our problem. Thank you. Please give us a command to save this change.

2_ We are trying to change video frame rate (now is 30fps and we need 25fps).
by these commands we cannot do this :
0x10 0xDE
0x11 0xC2
0x12 0x00
0x13 0x00
(sending Two byte, then sending next two byte and ... ).

Please guide me. Thanks a lot.

@nimadibaj
You have implemented the function of writing 0xff to 0x000b. Similarly, proceed to write the subsequent registers as well.
The method for writing the subsequent registers is the same as that for writing the 0x0b register, but they must be written in sequence.
Addr--->data
0x10 0xDE
0x11 0xC2
0x12 0x00
0x13 0x00

@siderat I think this one will work.

@brunosaisi
For configuring this camera via I2C, the process is not done through v4l2-ctl but directly using a script. Please note the following regarding this script:

If you are using the v4l2 driver mode, camera_i2c_config is not required. When running ./veye_mipi_i2c.sh, make sure to specify the I2C bus you are using with the -b parameter.

Below is an explanation regarding the I2C bus.
https://wiki.veye.cc/index.php/I2c_bus_number_and_video_node
For long exposure usage, you may need to configure the lowlight function or the new_mshutter function. Please refer to the corresponding section in the link below.
https://wiki.veye.cc/index.php/VEYE-MIPI-290/327_i2c/#new_mshutter

@lpcq2000 抱歉现在MCU bypass模式已经不再被支持了。我们的资料有一些迟滞，回头会更新到上面。

@deepcamera

Only ISP-related parameters can be persistently saved after power-off through the paramsave command. Therefore, I recommend that you reconfigure your desired parameters in the startup script during program design.

As for which commands can be saved, you can refer to the veye_mipi_i2c.sh source code. If the corresponding read/write functions contain operations like './i2c_write $I2C_DEV $I2C_ADDR 0x10 0xDA', it indicates that the function's register belongs to the ISP category and can be saved using paramsave.