@alex_ai
Thank you for your reply.
I used the script from the release
folder to install the driver, and the operating system version is 6.6.20-1+rpt1.
So, while installing the driver, I think the DTS file used by the script is raspberrypi_v4l2/driver_source/dts/rpi-6.6.y/veyecam2m-overlay.dts
, which already has cam0 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>
.
I compiled the source code, and now both cameras are recognized!