mirror of
https://github.com/mbirth/wiki.git
synced 2024-09-19 06:23:25 +01:00
58 lines
2.1 KiB
Markdown
58 lines
2.1 KiB
Markdown
---
|
|
created: 2008-10-04 13:15:04 +0200
|
|
layout: redirect
|
|
layout_old: default
|
|
redirect_to: https://blog.mbirth.de/archives/2008/10/04/card-reader-of-the-acer-aspire-one.html
|
|
tags:
|
|
- know-how
|
|
- hardware
|
|
- acer
|
|
- aspire
|
|
- cardreader
|
|
title: Card Reader of the Acer Aspire One
|
|
toc: false
|
|
updated: 2009-12-29 15:58:15 +0100
|
|
---
|
|
|
|
**Model:** [JMicron JMB38x](http://www.jmicron.com/Product_JMB38X.htm) PCI Express to 1394a OHCI and Memory Card Host Controller
|
|
|
|
<p><div class="notetip" markdown="1">
|
|
Since *Ubuntu Karmic Koala*, the card reader seems to be recognized fine - but only, **if there is a card inserted upon bootup**.
|
|
</div></p>
|
|
|
|
|
|
Enabling the device
|
|
===================
|
|
|
|
The cardreader device seems to be hidden on bootup and you have to enable it by issuing:
|
|
|
|
setpci -d 197b:2381 AE=47
|
|
|
|
This didn't work on the commandline but inside the `rc.local`, my 16GiB SDcard in the left slot was recognized fine.
|
|
|
|
|
|
Multicard-reader driver
|
|
=======================
|
|
|
|
The right-hand SD slot is actually a multi-card reader for MMC, SD, xD and MemoryStick. This device doesn't seem to be
|
|
recognized by my Ubuntu.
|
|
|
|
There's a project called [TI FlashMedia xx12/xx21 driver](http://tifmxx.berlios.de) which also contains the kernel
|
|
modules for the jmb38x. The Linpus Linux on the A150L loads modules with exactly those names: `jmb38x_xd`,
|
|
`flash_bd`, `memstick`, `mspro_block`, `xd_card` and `jmb38x_ms`.
|
|
|
|
The [UbuntuForums](http://ubuntuforums.org/showpost.php?p=5778068&postcount=70) contain a HowTo for installing the
|
|
TI-part of that driver. I proceeded the same way but installed those modules mentioned above instead of the TI ones.
|
|
Modprobing them on command-line worked fine, but after adding the modprobes to the `rc.local`, the next boot ended up
|
|
in continuous *soft lockups*.
|
|
|
|
So make sure you keep an USB stick with the [SysRescCD](http://www.sysresccd.org/Sysresccd-manual-en_How_to_install_SystemRescueCd_on_an_USB-stick) handy.
|
|
|
|
|
|
*[PCI]: Peripheral Component Interconnect
|
|
*[OHCI]: Open Host Controller Interface
|
|
*[MMC]: MultiMediaCard
|
|
*[SD]: Secure Digital
|
|
*[xD]: xD-Picture Card
|
|
*[TI]: Texas Instruments
|
|
*[USB]: Universal Serial Bus |