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Message-ID: <20050922083530.52435.qmail@web33203.mail.mud.yahoo.com>
Date: Thu, 22 Sep 2005 04:35:30 -0400 (EDT)
From: rep stsb <repstsb@yahoo.ca>
Subject: Re: In-kernel graphics subsystem 
To: linux-kernel@vger.kernel.org
Cc: Valdis.Kletnieks@vt.edu, 06020051@lums.edu.pk
In-Reply-To: <200509220606.j8M66u8d010990@turing-police.cc.vt.edu>
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--- Valdis.Kletnieks@vt.edu wrote:


> Wouldn't it make more sense to extend the current
> framebuffer driver
> support to support v-sync? (framebuffers are already
> in the kernel, and
> there were so many security holes with svgalib-based
> programs that it left
> a bad taste in a lot of people's mouths)

I am presently wounded and cannot do either until I
heal.

> And having gotten a v-sync interrupt, what would you
> *do* with it?
> You'll need an API here....

svgalib has a vga_waitrefresh() function. It can be
implemented as a block on, either a ioctl or a read,
on a kernel-space driver, or by polling.

mihai cartoaje


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