On Wed, Jan 04, 2023 at 02:34:14PM +0100, Martin Zaťovič wrote: > +if WIEGAND > + > +config WIEGAND_GPIO > + tristate "GPIO-based wiegand master (write only)" > + help > + This driver uses GPIO pins to send wiegand data. Odd mix of tabs and spaces :( Also you need a lot more information here please. thanks, greg k-h