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Forum Topic - is any doc guide to write CAN bus driver MCP2515 for QNX:

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Chris Liang(deleted)

06/12/2019 10:47 AM

post119755

is any doc guide to write CAN bus driver MCP2515 for QNX

Hi all,

I am trying to develop MCP2515 CAN bus driver for QNX 6.4.1. The platform arch is PPC440.

I am wondering anyone can point me where I should start? or is similar to linux device driver development? Linux has 
kernel code and user code, I would assume it is different since qnx is micro kernel.

Please..

Thanks in advance.

Albrecht Uhlmann

06/20/2019 5:14 AM

post119763

Re: is any doc guide to write CAN bus driver MCP2515 for QNX

I think writing CAN driver for this QNX release means designing and implementing a resource manager from scratch.

With newer versions, QNX provides libio-can.a library and a standardized interface to CAN, meaning you would *only* need
 to implement the hardware layer to serve the actual chip. But I am not sure if this framework is available for 6.4.1.

-Al

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