From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 4 Sep 2001 11:27:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 4 Sep 2001 11:26:54 -0400 Received: from [209.38.98.99] ([209.38.98.99]:52153 "EHLO srvr201.castmark.com") by vger.kernel.org with ESMTP id ; Tue, 4 Sep 2001 11:26:41 -0400 Content-Type: text/plain; charset=US-ASCII From: Fred To: Alan Cox , rastos@woctni.sk Subject: Re: Should I use Linux to develop driver for specialized ISA card? Date: Tue, 4 Sep 2001 10:26:40 -0500 X-Mailer: KMail [version 1.2] Cc: linux-kernel@vger.kernel.org In-Reply-To: In-Reply-To: MIME-Version: 1.0 Message-Id: <01090410264000.14864@bits.linuxball> Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm curious, Alan, Why? I'm a hardware developer, and I would have assumed that linux would have been ideal for real time / embedded projects? (routers / controllers / etc.) Is there, for instance, a reason to suspect that linux would not be able to respond to interrupts at say 8Khz? of course I know nothing of rtlinux so I'll read. TIA Fred _________________________________________________ On Tuesday 04 September 2001 10:15 am, Alan Cox wrote: > > The moving parts of the plotter are controlled by ISA card that generates > > (and responds to) interrupts on each movement or printing event. > > The interrupts can be generated quite fast; up to frequency of 4kHz. > > Thats fine. The issue you might need to consider is how long you can wait > between an irq and actually excuting the handler. If that is very tight > then you may want Victor Yodaiken's rtlinux > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/