rust-embedded
SpiDevice implementations in embedded-hal-bus don't provide a way to use active-high chip select
I am using a SPI display which requires active-high chip select, but all of the SpiDevice implementations don't mention the polarity of their CS pin anywhere. Looking at the implementation, these implementations are all hard-coded to use active-low CS, which won't work for this display. Adding a way of specifying the chip select polarity would make this usable for this case.
Couldn't you just create an InvertedPin struct that implements the OutputPin trait and does the inversion?
This seems like a non issue to me.
As a matter of fact, I wrote an inverted-pin crate that does exactly that. In my experience, active-low CS is the overwhelming majority so I think using an inverting wrapper should be enough and there is no pressing need to support this in a dedicated way. Closing. Feel free to reopen if you think otherwise.
