On Fri, Oct 07, 2022 at 07:34:25PM +0530, Manjunatha Venkatesh wrote: > > On 9/14/2022 8:39 PM, Arnd Bergmann wrote: > > Caution: EXT Email > > > > On Wed, Sep 14, 2022, at 4:29 PM, Manjunatha Venkatesh wrote: > > > > > NXP has SR1XX family of UWB Subsystems (UWBS) devices. SR1XX SOCs > > > are FiRa Compliant. SR1XX SOCs are flash less devices and they need > > > Firmware Download on every device boot. More details on the SR1XX Family > > > can be found athttps://www.nxp.com/products/:UWB-TRIMENSION > > > > > > The sr1xx driver work the SR1XX Family of UWBS, and uses UWB Controller > > > Interface (UCI). The corresponding details are available in the FiRa > > > Consortium Website (https://www.firaconsortium.org/). > > I know nothing about UWB, so I have no idea if the user interface > > you propose here makes sense. My guess is that there is a good chance > > that there are other implementations of UWB that would not work > > with this specific driver interface, so you probably need a > > slightly higher-level abstraction. > > > > We had an older subsystem that was called UWB and that got removed > > a while ago: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/staging/uwb?id=caa6772db4c1deb5d9add48e95d6eab50699ee5e > > > > Is that the same UWB or something completely different? > Basically, it is SPI device driver which supports UCI(Ultra-wide band > Command Interface) packet structure. It is not same as in mentioned link. Why isn't this just a normal SPI driver and you do the "UCI" commands from userspace through the device node there? I know I asked this before, but I can't remember the answer, sorry, so please include that in the changelog information when you resubmit. thanks, greg k-h
