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AD9361 No-OS driver under Linux userspace

Question asked by DragosB Employee on Jun 13, 2014
Latest reply on Feb 26, 2018 by DragosB

Someone asked me by email:


Hello,

 

My apologies if the answer to this is readily available on the web, but I couldn't manage to find anything.

 

Would you be able to point me at a device tree entry that i could use for using the no-os ad9361 driver code under linux? I'm specifically looking for the device tree entry that will create the "/dev/spidev32766.0" device. I have put something together myself based on tidbits i gathered around the web, but i'm getting a "failed to transfer one message from queue" error with 'my' spidev device. The no-os driver works fine on my zedboard+fmcomms2 setup when running bare metal, so it appears that i have something messed up in my linux-based spi driver or its configuration.

 

For bonus points, is there a uio device tree entry to support the uio device the no-os linux driver is attempting to open for the adc and dac dma's?

 

Regards,

Joe

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