Subject: Re: general {82,164,165}50 UART driver
To: Onno van der Linden <>
From: Matt Thomas <>
List: tech-kern
Date: 05/29/1996 19:01:06
> (2a) change my driver (the one on to use the 
>      softclock interrupt routine for comsoft() instead of
>      the tty software interrupt.
> or
> (2b) if possible, add a bit of code to alpha/machdep.c for tty software
>      interrupts in do_sir() and call comsoft() from there.
>      It looks like the hp300 needs this too.
> Question:
> Should I go for (2a) or (2b) ?
> or
> Which is "better" 'software interrupts' or 'periodic checks via softclock()' ?

Software interrupts.  Since network "isr"s exist, there is no reason why
tty (or disk/tape or ...) isrs should not also exist.

Matt Thomas               Internet:
3am Software Foundry      WWW URL:
Westford, MA              Disclaimer: I disavow all knowledge of this message