+ attachment for real.
On Sat, May 02, 2009 at 11:25:37AM +0100, Jurij Smakov wrote:
> On Tue, Apr 28, 2009 at 01:44:57AM -0700, David Miller wrote:
> > It won't, most likely because the device name is totally different
> > for Niagara's console device vs. the serial console device used
> > on all other types of boxes.
>
> Installer's rootskel uses the attached code to detect whether console
> is serial or not (by checking whether ioctl(0, TIOCGSERIAL, buffer)
> succeeds). Can you compile and run it on Niagara's serial console, to
> see whether this mechanism detects it correctly?
>
> Best regards,
> --
> Jurij Smakov jurij@xxxxxxxxx
> Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC
--
Jurij Smakov jurij@xxxxxxxxx
Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC
/*
* Licensed under GPLv2
*
* Adapted for Debian Installer by Frans Pop <fjp.debian.org> from
* cttyhack from busybox 1.11, which is
*
* Copyright (c) 2007 Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx>
*/
#include <sys/ioctl.h>
#include <stdio.h>
enum { VT_GETSTATE = 0x5603 }; /* get global vt state info */
int main(int argc, char ** argv)
{
/*
* Use an (oversized) dummy buffer as we're not interested in
* returned values.
* TIOCGSERIAL normally uses serial_struct from <linux/serial.h>
* VT_GETSTATE normally uses vt_stat from <linux/vt.h>
*/
char buffer[1024]; /* filled by ioctl */
if (ioctl(0, TIOCGSERIAL, buffer) == 0) {
/* this is a serial console */
printf("serial\n");
} else if (ioctl(0, VT_GETSTATE, buffer) == 0) {
/* this is linux virtual tty */
printf("virtual\n");
}
return 0;
}
