From owner-freebsd-mobile Wed May 30 23:43:54 2001 Delivered-To: freebsd-mobile@freebsd.org Received: from mta7.pltn13.pbi.net (mta7.pltn13.pbi.net [64.164.98.8]) by hub.freebsd.org (Postfix) with ESMTP id 9D97E37B424 for ; Wed, 30 May 2001 23:43:51 -0700 (PDT) (envelope-from gregsmth@pacbell.net) Received: from gregsIBM ([63.195.114.87]) by mta7.pltn13.pbi.net (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with ESMTP id <0GE600JD0TCZAM@mta7.pltn13.pbi.net> for freebsd-mobile@freebsd.org; Wed, 30 May 2001 23:43:47 -0700 (PDT) Date: Wed, 30 May 2001 23:43:47 -0700 From: Greg Smith Subject: freeing up IRQs on IBM ThinkPad 600 etc. To: freebsd-mobile@freebsd.org Reply-To: gregsmth@pacbell.net Message-id: <200105302343470540.001D98F8@mail.pacbell.net> X-Mailer: Calypso Version 3.20.02.00 (2) Content-type: text/plain; charset="us-ascii" Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hello, I thought some people might be interested in the following options to free up IRQs on the TP 600 (and 770 etc?). I wanted to have more available than the default configuration's IRQ 9, so I tested all of these. ============= Free IRQ 15 by disabling warm swap of FDD and CD: ps2 ide2 disable [CD still works as ata0-slave instead of ata1-master] see: http://www.pc.ibm.com/qtechinfo/LWIK-3VTJ5Q.html ============= Free IRQ 10 by moving DSP to IRQ 3: ps2 imodem irq 3 3 [handy if you WON'T be using the modem in FreeBSD, but will be using it in another OS] see: http://www.pc.ibm.com/qtechinfo/LWIK-3VCNT3.html ============= Free IRQ 3 & IRQ 10 by killing DSP & modem: ps2 imodem disable [handy if you WON'T be using the modem at all*] ============= Free IRQ 4 by killing Infrared: ps2 ir disable [handy if you WON'T be using the infrared at all] ============= * because I disabled the imodem device using ps2, but not Win95 Device Manager, it seems to still work fine in Win95 even though the BIOS allows FreeBSD to use IRQs 3 and 10. "at all" refers to other OS's which might not be so (insert your personal opinion here) ============= Of course there are other ps2 options, but these are a few that probably won't affect most people's use of FreeBSD. HTH someone, Greg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message