On Fri, Feb 5, 2016 at 12:24 AM, Andy Shevchenko <andy.shevchenko@xxxxxxxxx> wrote: > On Thu, Feb 4, 2016 at 10:06 PM, Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> wrote: >>> Original sample: >>> 00000000: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 .ELF............ >>> 00000010: 02 00 03 00 01 00 00 00 19 8d 04 08 34 00 00 00 ............4... >>> 00000020: 2c f2 00 00 00 00 00 00 34 00 20 00 04 00 28 00 ,.......4. ...(. >>> >>> Received sample: >>> 00000000: 7f 00 45 00 4c 00 46 00 01 00 01 00 01 00 00 00 ..E.L.F......... >>> 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ >>> 00000020: 02 00 00 00 03 00 00 00 01 00 00 00 00 19 8d 04 ................ >> 2) If you mean the NUL bytes for overruns, I could have some functional mode >> mis-branched in the N_TTY line discipline. > > Yeah, this one. > >> What are the termios settings >> on the rx side? > > I'm using this [1] tool with small patch applied that enables internal > loopback (TCIOM_LOOP). Here are the calls ret = cfsetspeed(&new_term, opts.baudrate); cfmakeraw(&new_term); new_term.c_cflag |= CREAD; new_term.c_cflag &= ~CRTSCTS; new_term.c_cc[VMIN] = 64; new_term.c_cc[VTIME] = 8; ... ret = tcflush(fd, TCIFLUSH); ret = fcntl(fd, F_SETFL, 0); > [1] https://git.breakpoint.cc/cgit/bigeasy/serialcheck.git/ -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
