Re: serial console and kernel 2.4

baettig
2001-07-30T15:13:30Z

Hi!

I had the same problem and I attached you a patch how I'm working
around this problem.

Reto

--- drivers/char/serial.c.orig Thu May 3 09:29:00 2001
+++ drivers/char/serial.c Thu May 3 09:29:34 2001
@@ -1764,8 +1764,8 @@
/*
* !!! ignore all characters if CREAD is not set
*/
- if ((cflag & CREAD) == 0)
- info->ignore_status_mask |= UART_LSR_DR;
+// if ((cflag & CREAD) == 0)
+// info->ignore_status_mask |= UART_LSR_DR;
save_flags(flags); cli();
if (uart_config[info->state->type].flags & UART_STARTECH) {
serial_outp(info, UART_LCR, 0xBF);

>
> I recently upgraded a linux box to the kernel 2.4.4 (from 2.2.18). This box
> has no display and use the serial console. Since the upgrade I can see the
> boot output on the remote console but I can't use the keyboard. Each time I
> press a key, an interrupt is seen by the no-display machine but no char
> appears in the console.
> Today I've upgraded an another box to 2.4.7 with a similar setup and I've
> the same problem.
>
> Is there something that I'm missing ? (something new with the kernel 2.4
> that is required for a serial console that was not required with the 2.2 ?)
>
> Is sombody else experienciong the same problem ?
>
> Christophe
>
>
> --
> Christophe Barbé
> Software Engineer - christophe.barbe@lineo.fr
> Lineo France - Lineo High Availability Group
> 42-46, rue Médéric - 92110 Clichy - France
> phone (33).1.41.40.02.12 - fax (33).1.41.40.02.01
> http://www.lineo.com
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