From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
To: Helge Hafting <helgehaf@aitel.hist.no>
Cc: linux-kernel@vger.kernel.org
Subject: Re: How to use a USB SD/MMC card reader?
Date: Wed, 19 Oct 2005 15:52:17 -0400 [thread overview]
Message-ID: <20051019195217.GA5266@csclub.uwaterloo.ca> (raw)
In-Reply-To: <20051019193913.GA21749@aitel.hist.no>
On Wed, Oct 19, 2005 at 09:39:13PM +0200, Helge Hafting wrote:
> I have an usb card reader (Apacer) in my desktop machine.
>
> It has several slots for different card types. One of the slots accepts
> the compactflash cards I use in my camera. I can mount those and
> copy the pictures, no problems there. (It becomes /dev/sdf)
>
> Another slot accepts SD/MMC cards. I tried inserting an MMC card,
> but nothing seems to happen. Using /dev/sdf doesn't work - no medium.
> And /dev/sdg doesn't exist.
>
> I obviously have usb block devices & scsi working, or I'd be unable to use
> the compactflash cards. I have also enabled CONFIG_MMC for this kernel. (2.6.14-rc3)
>
> Is there anything else I should do, to make the mmc slot work too?
Your adapter might use LUNs rather than IDs for each port. By default
(at least on most distribution compiled kernels) only LUN 0 is scanned.
You can enable scanning all LUNs on all scsi devices, or you can
manually run a script that scans for scsi devices on each LUN.
I belive the scsi-mod option max_luns should be set to 5 or 7 or
whatever many slots your device has, and that should hopefully make
things appear.
Len Sorensen
next prev parent reply other threads:[~2005-10-19 19:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-19 19:39 Helge Hafting
2005-10-19 19:52 ` Lennart Sorensen [this message]
2005-10-21 6:32 ` Helge Hafting
2005-10-20 3:16 ` Mark Lord
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20051019195217.GA5266@csclub.uwaterloo.ca \
--to=lsorense@csclub.uwaterloo.ca \
--cc=helgehaf@aitel.hist.no \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®