CCS/AM3358: SPI control from User space

Harshad Hapani 96

Part Number: AM3358

Tool/software: Code Composer Studio

hello

currently i'm using the Sitara AM335x kit with Arago image, how to enable and control the SPI 1 module from user space?

0 Andreas Dannenberg over 5 years ago

Harshad,

on a high-level here's what you would need to do to allow for SPI master operation from Linux userspace:

Review the Kernel's Documentation/spi/spidev README
Add/enable CONFIG_SPI_SPIDEV=y to the Kernel config
Create an appropriate DTS node for the SPI peripheral instance you want to use that includes a device that links to that SPI driver (via compatible = "rohm,dh2228fv"), while also taking care of SPI peripheral pinmux
Use SPI sample code part of the Kernel tree to see how to communicate/use the SPI device which will then be available under /dev/*

Please review the below posts for details (there are other applicable E2E threads that can be found via E2E search or Google)

This should give you a starting point to implement your solution.

Regards, Andreas

Processors forum