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- i.MX6Q imx-media driver documentation
i.MX6Q imx-media driver documentation
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i.MX6Q imx-media driver documentation
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Dear iMX Community,
I am currently working on a custom device driver to receive 16 bit parallel RGB565 data in gated clock mode by IPU0_CSI1 without any other configuration bus (i2c, gpio etc). My original post is here: https://community.nxp.com/t5/i-MX-Processors/Parallel-video-on-IPU0-CSI-Input-without-I2C/m-p/129137...
Meanwhile I have understood how it could be done with the mxc_v4l2_capture.c driver. The IOCTL function "ioctl_g_ifparm()" can be used to set the desired parameters. This is quite well documented in "i.MX Porting Guide" (IMXBSPPG, Rev. LF5.10.9_1.0.0, 31 March 2021) and i.MX Linux Reference Manual (IMXLXRM, Rev. LF5.10.35_2.0.0, 30 June 2021).
Our currently used BSP uses the imx-media-dev.c driver from /drivers/staging/media/imx. This driver is described here: https://www.kernel.org/doc/html/latest/admin-guide/media/imx.html
What I miss is information how to develop a custom camera driver for the imx-media driver. It is totally unmentioned in the i.MX Linux Reference Manual, IMXLXRM. Before we switch back to the mxc_v4l2_capture driver I wanted to try to understand how the imx-media driver should be used to configure the iMX specific settings like gated clock mode etc.
Maybe someone has already some experience with the imx-media driver and could point me please into right direction?
Best regards and thank you in advance for any information!
igorpadykov
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Hi Oskars
>What I miss is information how to develop a custom camera driver for the imx-media driver.
>It is totally unmentioned in the i.MX Linux Reference Manual, IMXLXRM.
unfortunately such documentation is not available, sorry. NXP provides developers documentation on :
For help with writing custom software if that documentation is not sufficient, may be recommended
to proceed with help of NXP Professional Services:
https://contact.nxp.com/new-prof-svcs-sw-tech
Best regards
igor
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Dear Igor,
thank you for the feedback. We have succesfully created a minimalistic custom driver without i2c interface (platform device driver) which registers a /dev/v4l-subdevice0 video device. I hope we get the integration with imx6 media driver to work by analysing the existing i2c camera sensor drivers.
Best Regards
