From: Tim Waugh <twaugh@redhat.com>
To: Michael Ben-Gershon <mybg@netvision.net.il>
Cc: linux-kernel@vger.kernel.org
Subject: Re: lpr to HP laserjet stalls
Date: Tue, 4 Sep 2001 12:27:51 +0100 [thread overview]
Message-ID: <20010904122751.S20060@redhat.com> (raw)
In-Reply-To: <3B93E289.7F121DE9@netvision.net.il> <20010903221142.J20060@redhat.com> <3B94B4E7.701C76FA@netvision.net.il> <20010904121523.Q20060@redhat.com> <3B94B93B.2B907DCF@netvision.net.il>
In-Reply-To: <3B94B93B.2B907DCF@netvision.net.il>; from mybg@netvision.net.il on Tue, Sep 04, 2001 at 02:21:31PM +0300
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On Tue, Sep 04, 2001 at 02:21:31PM +0300, Michael Ben-Gershon wrote:
> Please excuse my ignorance, but if it detects the IRQ and does not use it,
> how is it possible to set up interrupt-driven mode?
For interrupt-driven mode: irq=auto dma=nofifo
For PIO mode: irq=auto dma=none
For DMA mode: irq=auto dma=auto
You need to check the 'dmesg' output after parport_pc has loaded to
see exactly what it will use though (i.e. whether it has detected
usable hardware).
The line that goes 'parport0: PC-style at 0x378 (0x778)' is the
important one. Ignore the stuff in [brackets] at the end; if an
interrupt is mentioned it is using it; if a DMA channel is mentioned,
it is using it; and if it says 'using FIFO' then it's using the FIFO
with programmed IO (rather than DMA).
Tim.
*/
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next prev parent reply other threads:[~2001-09-04 11:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-03 20:05 lpr to HP laserjet stalls Michael Ben-Gershon
2001-09-03 21:11 ` Tim Waugh
2001-09-04 0:20 ` Horst von Brand
2001-09-04 8:36 ` Tim Waugh
2001-09-04 0:56 ` Patrick Dreker
2001-09-04 8:50 ` Tim Waugh
2001-09-04 12:07 ` Patrick Dreker
2001-09-04 11:05 ` Michael Ben-Gershon
[not found] ` <3B94B4E7.701C76FA@netvision.net.il>
[not found] ` <20010904121523.Q20060@redhat.com>
2001-09-04 11:21 ` Michael Ben-Gershon
2001-09-04 11:27 ` Tim Waugh [this message]
2001-09-04 13:22 ` Michael Ben-Gershon
2001-09-04 13:27 ` Tim Waugh
2001-09-04 13:41 ` Michael Ben-Gershon
2001-09-04 13:48 ` Tim Waugh
2001-09-04 21:17 ` Michael Ben-Gershon
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