Hansen Martin wrote :
> I am making a module that have to register a Line discipline. But i cant
> fugure out what to name it(what number do it get). When i look at the files
> mentiond below, i can't see how to introduce a new line discipline witout
> changing the kernel itself.
> [snip]
Hi,
(Please don't pay attention to my horrible english :)
Hoping it will help you, here is a part of a driver I'm currently
writting. I register a line discipline by doing this :
--*-- BEGIN --*--
static const int N_SRIP = 14; /* SRIP Line Discipline Number
*/
/*UGLY HACK : because this is the PPP associated number*/
static struct tty_ldisc srip_ldisc;
int status;
memset(&srip_ldisc, 0, sizeof(srip_ldisc));
srip_ldisc.magic = TTY_LDISC_MAGIC;
srip_ldisc.name = "srip";
srip_ldisc.flags = 0;
srip_ldisc.open = srip_tty_open;
srip_ldisc.close = srip_tty_close;
srip_ldisc.read = NULL;
srip_ldisc.write = NULL;
srip_ldisc.ioctl = srip_tty_ioctl;
srip_ldisc.poll = NULL;
srip_ldisc.receive_buf = srip_tty_receive;
srip_ldisc.receive_room = srip_tty_room;
srip_ldisc.write_wakeup = srip_tty_wakeup;
if ((status = tty_register_ldisc(N_SRIP, &srip_ldisc)))
printk(KERN_ERR "srip : error registering line discipline:
%d\n", status);
else
printk(KERN_INFO "srip : line discipline registered\n");
return status;
--*-- END --*--
where "srip_tty_*" are functions.
Regards,
--
Francis
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