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From: Pavel Machek <pavel@ucw.cz>
To: Tiago Vignatti <tiago.vignatti@nokia.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>,
	Dave Airlie <airlied@redhat.com>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] vga: drops a documentation regarding the VGA arbiter
Date: Sat, 18 Jul 2009 13:48:17 +0200	[thread overview]
Message-ID: <20090718114817.GD1433@ucw.cz> (raw)
In-Reply-To: <1247576250-16274-3-git-send-email-tiago.vignatti@nokia.com>


> +I. Details and Theory of Operation
> +==================================
> +
> +I.1 vgaarb
> +----------
> +
> +The vgaarb is a module of the Linux Kernel. When it is initially loaded, it
> +scans all PCI devices and add the VGA ones inside the arbitration. The arbiter

and adds?


> +If the device is hot-{un,}plugged, there is a hook inside the module to notify
> +them being added/removed in the system and automatically added/removed in
> +the arbiter.

I don't see who's 'them' here.

> +I.2 libpciaccess
> +----------------
> +
> +To use the vga arbiter char device it was implemented a serie of functions

series?

> +inside the pciaccess library. Two fields were added to struct pci_device for
> +this be possible:
> +
> +    /* the type of resource decoded by the device */
> +    int vgaarb_rsrc;
> +    /* the file descriptor (/dev/vga_arbiter) */
> +    int vgaarb_fd;
> +
> +
> +and the functions:
> +

What functions?

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2009-07-18 11:48 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-14 12:57 [PATCH 0/2] VGA arbiter implementation Tiago Vignatti
2009-07-14 12:57 ` [PATCH 1/2] vga: implements VGA arbitration on Linux Tiago Vignatti
2009-07-14 12:57   ` [PATCH 2/2] vga: drops a documentation regarding the VGA arbiter Tiago Vignatti
2009-07-18 11:48     ` Pavel Machek [this message]
2009-07-19 18:50       ` Vignatti Tiago (Nokia-D/Helsinki)
2009-07-14 14:35   ` [PATCH 1/2] vga: implements VGA arbitration on Linux Alan Cox
2009-07-15  4:43     ` Dave Airlie
2009-07-16  4:25     ` Dave Airlie
2009-07-16  8:48       ` Alan Cox
2009-07-16 10:38         ` Dave Airlie
2009-07-16 16:25           ` Jesse Barnes
2009-07-17  0:22           ` Benjamin Herrenschmidt
2009-07-17  0:20         ` Benjamin Herrenschmidt
2009-07-17  5:00     ` Dave Airlie
2009-07-17  5:12       ` Benjamin Herrenschmidt
2009-07-14 16:15   ` Greg KH
2009-07-16  3:54     ` Dave Airlie
2009-07-16  4:02       ` Greg KH
2009-07-16  4:06         ` Dave Airlie
2009-07-16  8:41       ` Alan Cox
2009-07-17  0:24         ` Benjamin Herrenschmidt
2009-07-17  0:23       ` Benjamin Herrenschmidt
2009-07-18 11:47   ` Pavel Machek

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