On Mon, 8 Jul 2019 21:02:52 +0200 Martin Hundebøll <mar...@geanix.com> wrote:
> Guessing the base tty for a gsm0710 multiplexed serial device is not > currently possible, which makes it racy to use with multiple modems. > > Add a way to map the physical serial tty to its related mux devices > using a ioctl. That looks very sensible > + int base; > > /* open the serial port connected to the modem */ > fd = open(SERIAL_PORT, O_RDWR | O_NOCTTY | O_NDELAY); > @@ -58,6 +61,11 @@ Major parts of the initialization program : > c.mtu = 127; > /* set the new configuration */ > ioctl(fd, GSMIOC_SETCONF, &c); > + /* get and print base gsmtty device node */ > + ioctl(fd, GSMIOC_GETBASE, &base); Can we at least use a specific sized type ? uint32_t or whatever is fine. Alan
