Jon Burford (jburford@xsilogy.com)
Fri, 17 Sep 1999 17:11:13 -0700
Do you have plans to release a 2.2.12 ppdev patch or possible directions to
manually patch a 2.2.12 kernel? I would like to use your code to set the
IEEE 1284 mode of the parport and also read/write control bits all from user
space. Also, if you have directions to any FAQs or other docs related to
the ppdev stuff, I would much appreciate it! By the way, various
constraints force me to use the 2.2.12 kernel, so I might be able to test
the parport stuff with 2.2.10, but this is not a long term solution.
Cheers,
Jon
----- Original Message -----
From: Tim Waugh <tim@cyberelk.demon.co.uk>
To: Joost Roelandt <joey@netbeat.com>
Cc: parport <linux-parport@torque.net>
Sent: Friday, September 17, 1999 11:01 AM
Subject: Re: [PARPORT] Newbie -- how to access the ECP from an application?
> On Fri, 17 Sep 1999, Joost Roelandt wrote:
>
> > Basically my question for now is: where can I find info ?
> > What should I look into before starting anything like this ?
>
> There is a kernel device driver called 'ppdev' in newer (developmental)
> kernels, which is meant to do what you want. It isn't exactly bug-free
> yet though. It is also available as an add-on patch to 2.2.
>
> The add-on is available here:
> <URL:http://www.cyberelk.demon.co.uk/parport/patch-2.2.10-ppdev4.gz>
>
> The ppdev code is also in 2.3.18. Take a look at the big comment at the
> top of drivers/char/ppdev.c.
>
> Note that if your device has timing requirements beyond those specified by
> ECP in IEEE 1284, you will have to write your own kernel-level device
> driver.
>
> Tim.
> */
>
>
>
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