sachinwannabe
Posts: 1
Joined: Wed May 22, 2019 7:23 pm

CS-2 Camera Interface

Wed May 22, 2019 7:35 pm

Hello,

A question about the MIPI CS-2 camera interface on the Compute Module/ Pi. I know that only 2 sensors are supported out of the box. I also know that the physical connector has the 4 data and 1 clock lane (D-PHY) and separate SDA/SCL I2C lanes. If I have a sensor that does not need configuration via the I2C and that is sending out data (a CS-2 TX with DPHY connection out) do I have a shot at grabbing the pixel data coming on the CS-2 interface. Is there software/driver available that allow capturing CSI-2 data from 1, 2 or 4 lanes and as long as the transmitter is CSI-2 compliant transmitter can I expect to receive the transmitted pixels on the CSI-2 interface?

Thanks

6by9
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 6883
Joined: Wed Dec 04, 2013 11:27 am
Location: ZZ9 Plural Z Alpha, aka just outside Cambridge.

Re: CS-2 Camera Interface

Thu May 23, 2019 8:13 am

Yes.
Two options.
- via MMAL. See viewtopic.php?f=43&t=109137
- use the kernel V4L2 driver - https://github.com/raspberrypi/linux/tr ... rm/bcm2835 and device tree bindings at https://github.com/raspberrypi/linux/bl ... unicam.txt. That does expect to have a sensor subdevice driver to control the source, so you'd need to create a dummy one that did nothing on command. The main thread discussing that is viewtopic.php?f=38&t=120702 for the Toshiba TC358743, but it has ballooned out to 23 pages!
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