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can-utils
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The number for the SLCAN line discipline can not be found in 

<linux/tty.h> anyway but needs to be written as module alias

tty-ldisc-17 slcan

So we remove the annoying #error output and use the correctly defined 
'17' from Kernel 2.6.25+ as default.
pull/7/head
Oliver Hartkopp 2008-09-17 13:02:49 +00:00
parent 4455308aa0
commit afcac3462a
1 changed files with 2 additions and 9 deletions
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11
slcan_attach.c
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@ -51,15 +51,8 @@
#include <unistd.h>
#include <getopt.h>
#include <sys/ioctl.h>
#include <linux/tty.h> /* thanks for cleanup since 2.6.21 */
//#include <asm/termios.h> /* ldiscs for each arch up to 2.6.20 */
#ifndef N_SLCAN
#error Your kernel includes do not provide the needed line discipline.
#error This is a normal behaviour for Kernel versions < v2.6.25 .
#error You might update or patch your kernel OR you can just ignore
#error this compilation failure if you do not need the slcan driver.
#endif
#define LDISC_N_SLCAN 17 /* default slcan line discipline since Kernel 2.6.25 */
void usage(char *name)
{
@ -70,7 +63,7 @@ void usage(char *name)
int main(int argc, char **argv)
{
int fd;
int ldisc = N_SLCAN; /* default */
int ldisc = LDISC_N_SLCAN;
int detach = 0;
char *tty;
int opt;