On 12/24/2015 06:42 PM, Damien Riegel wrote: > Technologic Systems provides an IP compatible with the SJA1000, > instantiated in an FPGA. Because of some bus widths issue, access to > registers is made through a "window" that works like this: > > base + 0x0: address to read/write > base + 0x2: 8-bit register value Why do you use io{read,write}16 if it's a 8 bit register? Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |