Hey all, I'm currently using the latest Debian Jessie image (2015-11-08) on my Beaglebone Black. I want to use UART4 as RS485 interface and use gpio3_19 as DE/RE signal.
The device tree overlay which I use to configure the pinmux settings can be found here: https://github.com/Sillern/BB-RS485/blob/master/BB-RS485-00A0.dts When I load this overlay and try to configure the port in my C program, I always get the error message "inappropriate ioctl for device" when using the command ioctl( fd, TIOCSRS485, &rs485conf ) where rs485conf is a struct serial_rs485 The image uses kernel version 4.1.12-ti-r28. Has this kernel version RS485 support enabled for the UART interfaces? If not, is there a kernel version (preferable 4.1.X) which supports RS485 on the UARTs of the BBB? Any help appreciated! Regards, Florian -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
