From: Jurgen Kramer <gtm.kramer@inter.nl.net>
To: Felix Dorner <felix_do@web.de>
Cc: linux-kernel@vger.kernel.org, linux-laptop@mobilix.org
Subject: Re: internal card reader support
Date: Wed, 08 Dec 2004 19:50:34 +0100 [thread overview]
Message-ID: <1102531834.4272.12.camel@paragon.slim> (raw)
In-Reply-To: <41B74174.3080908@web.de>
On Wed, 2004-12-08 at 18:01 +0000, Felix Dorner wrote:
> Hi,
>
>
> My notebook (hp nx9105) has an integrated 5in1 card-reader. I would
> really like to use this with linux.
> Since I do not think it is supported yet, I d like to know if it might
> be possible to write a module or so for this.
> I am just an average C programmer, but always wanted to dive into kernel
> developement. My knowledge on computer architecture is also no more than
> basic, so this might be something to really learn a lot...
> So I start at zero knowledge now. First of course I need to find out if
> what I want to do is possible at all.
> This means now to identify the hardware inside and see if I can get
> documents for that.
>
> First I just start with:
>
> #lspci
> [...]
> 0000:02:04.0 CardBus bridge: Texas Instruments: Unknown device ac54 (rev 01)
> 0000:02:04.1 CardBus bridge: Texas Instruments: Unknown device ac54 (rev 01)
> 0000:02:04.2 System peripheral: Texas Instruments: Unknown device 8201
> (rev 01)
> [...]
Looks like the card reader is part of the PC Card chip. I have a similar
setup om my laptop. I never managed to get it working. But maybe things
changed and newer PC Card brigdes have a card reader which act as a USB
device. I have a Ricoh controller on my laptop:
00:09.0 CardBus bridge: Ricoh Co Ltfd RL5c476 II (rev 88)
00:09.1 CardBus bridge: Ricoh Co Ltfd RL5c476 II (rev 88)
00:09.2 System peripheral: Ricoh Co Ltd: Unknown device 0576 (SD Card
reader?)
> This is all that I have. Now I am already confused. My box has one
> PCMCIA slot. Which is now the PCMCIA and which is the CardReader? What
> about the third device? Might this be the integrated infrared controller?
>
> Can you give me any hints/tips where to start best, what to read first?
>
> I know this seems to be very difficult, but I have quite some free time
> that I don't want to spend playing bzflag all night long, so I think
> this is a great way to learn something.
>
Jurgen
next prev parent reply other threads:[~2004-12-08 18:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-08 18:01 Felix Dorner
2004-12-08 18:21 ` Dave Jones
2004-12-08 20:28 ` Pavel Machek
2004-12-08 18:50 ` Jurgen Kramer [this message]
2004-12-08 19:21 ` David Vrabel
2004-12-14 13:03 ` Felix Dorner
2004-12-14 13:24 ` David Vrabel
2004-12-16 17:27 ` Bill Davidsen
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