There is not too much to /dev/null. You could probably create a standalone mtd_null.c driver.
Or maybe use the existing filemtd.c on /dev/null. That might work. There is also a fake MTD flash device in arch/arm/sim//up_[q]spiflash.c Those actually emulate flash devices and are great for testing. On Wed, Dec 1, 2021 at 5:06 PM Petro Karashchenko < petro.karashche...@gmail.com> wrote: > Hello, > > Is it possible to create a "fake" MTD device on top /dev/null? > > In theory I think that should be possible. Does anyone see any drawbacks > with such approach? > > Best regards, > Petro >