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linuxspidevice-tree
Dvir
Dvir

Reputation: 61

linux: spidev is not shown in /dev

I did the following steps in order to use spidev in Linux- kernel 3.14.28 compiled on arm imx6Q (SMARC board, by Yocto-Project):

  1. In kernel configuration, I enabled SPIDEV: CONFIG_SPI_SPIDEV=y.
  2. In device tree, I added the following lines:
&smarc_spi0 {
   spidev@1 {
      #address-cells = <1>;
      #size-cells = <1>;
      compatible = "linux, spidev";
      spi-max-frequency = <20000000>;
      reg = <1>;   
   };
};

I compiled my Linux successfully, and still can't see /dev/spidev0.1 appear in /dev folder.

Any idea?

Upvotes: 2

Views: 4296

Answers (1)

Dvir
Dvir

Reputation: 61

I found out the problem: compatible string wasn't accurate.. I had extra space between "linux," and "spidev".. The appropriate way is: compatible = "linux,spidev";

Upvotes: 3

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