I have a SPI DA (DAC8420) converter with chipselect tied to ground, so it is always selected.
Instead it needs a positive load pulse to get the value out on the analog side
The load pulse pin is connected to the SPI MISO Pin (PF12)
I try to use the spidev driver from user space and managed to disable the MISO functionality
But is it possible to tell the driver not to use chipselect ??
When i remove
in my board file, the spidev disappears from /dev directory
Anyone who knows how to do it ??