https://community.nxp.com/t5/i-MX-Processors/Inquiry-on-New-Camera-Sensor-Device-Driver-Development/m-p/2050727#M234422 <P>Dear NXP Community Members,</P><P>I hope this message finds you well.</P><P>I am currently developing a new camera sensor device driver using the i.MX 8M Plus EVK on Linux Yocto (version 6.1.55). The device I am working with is referred to as "a123". I have used the ov5640 sensor driver as a reference to create the device tree source file (.dts) and the driver file (.c). However, upon loading the kernel module, a new /dev/video interface is not being created.</P><P>In the dmesg log:</P><P>* "mx8-img-md: Registered mxc_isi.0.capture as /dev/video3" indicates it is registered as /dev/video3.<BR />* "unregister ISI channel: mxc_isi.0" yet it seems to be unregistered.<BR />Could you please advise on what might be required to successfully create the /dev/video device?</P><P>Here is my current status:</P><P>* The dmesg log is attached for your reference.<BR />* I have verified I2C communication using the i2cdetect command; I2C read/write operations are successful from a user application.<BR />Thank you for your assistance.</P><P>Best regards,<BR />Sakata</P> Tue, 25 Feb 2025 10:22:27 GMT Sakata 2025-02-25T10:22:27Z https://community.nxp.com/t5/i-MX-Processors/Inquiry-on-New-Camera-Sensor-Device-Driver-Development/m-p/2050727#M234422 <P>Dear NXP Community Members,</P><P>I hope this message finds you well.</P><P>I am currently developing a new camera sensor device driver using the i.MX 8M Plus EVK on Linux Yocto (version 6.1.55). The device I am working with is referred to as "a123". I have used the ov5640 sensor driver as a reference to create the device tree source file (.dts) and the driver file (.c). However, upon loading the kernel module, a new /dev/video interface is not being created.</P><P>In the dmesg log:</P><P>* "mx8-img-md: Registered mxc_isi.0.capture as /dev/video3" indicates it is registered as /dev/video3.<BR />* "unregister ISI channel: mxc_isi.0" yet it seems to be unregistered.<BR />Could you please advise on what might be required to successfully create the /dev/video device?</P><P>Here is my current status:</P><P>* The dmesg log is attached for your reference.<BR />* I have verified I2C communication using the i2cdetect command; I2C read/write operations are successful from a user application.<BR />Thank you for your assistance.</P><P>Best regards,<BR />Sakata</P> Tue, 25 Feb 2025 10:22:27 GMT https://community.nxp.com/t5/i-MX-Processors/Inquiry-on-New-Camera-Sensor-Device-Driver-Development/m-p/2050727#M234422 Sakata 2025-02-25T10:22:27Z