On Wed, Dec 5, 2018 at 2:20 PM Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> wrote: > On Wed, Dec 05, 2018 at 01:19:54PM +0100, Linus Walleij wrote: > > > The iio testing driver only needs the trigger and relies on an irq that > > > then calls the registerd handler. The iio driver doesn't need to tune > > > the edge sensitivity though and if your mockup driver just only calls > > > the fire routine if the configured sensitivity justifies that, > > > everything should work as expected. > > > > Simulating edges in the generic IRQ simulator codes seems > > generally useful to me, even if there is just one user now. > > I cannot imagine another potential user. Which kind of driver could use > that that is not a gpio simulator? I suppose anything that can generate an IRQ and wants to generate some test IRQs where edge matters, drivers/irqchips/? Regmap IRQ drivers/base/regmap/regmap-irq.c does support edges, and regmap already expose all registers it handles in debugfs, so it'd be really neat of you can also use debugfs to insert IRQs from a device using regmap. Yours, Linus Walleij