I am new to creating a driver implementing. My Application is using socketcan interface and apparently socketcan is not supported by the SOC. I am planning to write my own driver. The issue I know how simple module for kernel I am not pretty sure where to start for socketcan driver . If someone can please tell me where can I take reference for building the CAN driver or some git repo where can I use it and any specifics while writing the driver
1 Answers
SocketCan is the name of a Linux subsystem. It can be enabled in the kernel config via CONFIG_CAN. In turn, this subsystem will make use of platform-specific drivers to control the SOC's CAN adapters (if any).
If Linux's CAN subsystem is not enabled, make sure to enable CONFIG_CAN. If it is enabled, and no "can" device show up, the best would likely be to contact the SOC vendor for further guidance / drivers / devicetree / ... In any case, writing a custom driver is probably not necessary here.
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