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--- doc:appunti:hardware:lacie_d2_network [2010/06/21 23:36] – niccolo
+++ doc:appunti:hardware:lacie_d2_network [2014/03/01 06:28] – [Compiling the Linux kernel] niccolo
@@ Line 666: / Line 666: @@
 Here it is the binary and the source code of **{{:doc:appunti:hardware:lacie:eeprom_write_byte.tar.gz|eeprom_write_byte}}**.
+===== The EEPROM =====
+With a proper kernel (2.6.32 with the above patch, or 2.6.37) the EEPROM content is exposed for read and write via the pseudo file **''/sys/bus/i2c/devices/0-0050/eeprom''**. This is what I know about its content:
+^ Offset  ^ Length  ^ Content  ^
+|       0 |       6 | Ethernet MAC address.  |
+|       6 |       1 | Power flag.\\ If set to **''LACIE_POWER_OFF''** (0), U-Boot will stop the boot process and wait for Wake-on-LAN.\\ If set to **''LACIE_POWER_ON''** (1), U-Boot will reboot.  |
 ===== Disassembling the LaCie d2 Network =====
@@ Line 815: / Line 823: @@
 ===== Compiling the Linux kernel =====
+You can download the kernel I compiled (vanilla with patches for LEDs) here: [[http://www.rigacci.org/pub/Linux/kernel-lacie/]]
 After several tries, I compiled a **2.6.32 kernel** suitable to boot the LaCie from an **ext3 Debian Lenny partition**. No initrd is required to boot (this is fortunate FIXME, because I don't know how to install initrd with U-Boot). Here it is the **[[http://www.rigacci.org/pub/Linux/kernel-lacie/config-2.6.32-lacie.0.10|config file]]**.
@@ Line 1042: / Line 1052: @@
 Playing mp3 takes about 16% of CPU, 2% of memory and system load average remains near to zero.
+==== USB Audio volume problem ====
+On Linux kernel 2.6.32 (providing Alsa sound drivers 1.0.21) **the following USB audio dongle works as expected**, including the volume control:
+<code>
+Bus 001 Device 003: ID 0c76:1607 JMTek, LLC. audio controller
+</code>
+There is a problem with some **other USB chips**, where **the volume control does not work**. When the volume control is set to the lower position, the audio is muted, but at any other position the audio is set to its maximum value. This is a chip wich has the problem:
+<code>
+Bus 001 Device 002: ID 1130:f211 Tenx Technology, Inc. TP6911 Audio Headset
+</code>
+Here there is a [[https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/559939|bug report #559939]] reported to the Ubuntu distribution.
 ===== Other NAS comparison =====
@@ Line 1054: / Line 1080: @@
 | LaCie Network Space 1 TB  | 400 Mhz Marvell 88F6082 Feroceon  |     16/64 Mb |       ? |   1 |  No   |   ?   |
+===== Backporting minidlna =====
+We run **Debian 6 Squeeze** on our LaCie d2 Network and we want it to be a [[wp>Digital_Living_Network_Alliance|DLNA]] server. We choosed [[https://packages.debian.org/search?keywords=minidlna|minidlna]] because it is targeted to embedded systems. The package exists for **Debian 7 Wheezy**, so we have to backport it.
+Into a **[[..:prog:qemu_arm|Qemu armel virtual machine]]** we installed the packages required for Debian developing and build dependencies, we need also debhelper from backports.
+<code>
+apt-get install build-essential dh-make debhelper dpatch
+apt-get install libavcodec-dev libavformat-dev libavutil-dev libexif-dev \
+    libflac-dev libid3tag0-dev libogg-dev libsqlite3-dev libvorbis-dev libjpeg-dev
+wget http://ftp.at.debian.org/debian-backports//pool/main/d/debhelper/debhelper_9.20120909~bpo60+1_all.deb
+dpkg -i debhelper_9.20120909~bpo60+1_all.deb
+</code>
+Then we downloaded the minidlna sources and compiled the sources:
+<code>
+mkdir /usr/local/src/minidlna
+cd /usr/local/src/minidlna
+wget http://ftp.de.debian.org/debian/pool/main/m/minidlna/minidlna_1.0.24+dfsg-1.dsc
+wget http://ftp.de.debian.org/debian/pool/main/m/minidlna/minidlna_1.0.24+dfsg.orig.tar.gz
+wget http://ftp.de.debian.org/debian/pool/main/m/minidlna/minidlna_1.0.24+dfsg-1.debian.tar.gz
+dpkg-source -x minidlna_1.0.24+dfsg-1.dsc
+cd minidlna-1.0.24+dfsg
+dpkg-buildpackage -rfakeroot
+cd ..
+</code>
+The resulting **{{.:lacie:minidlna_1.0.24_dfsg-1_armel.deb|minidlna_1.0.24+dfsg-1_armel.deb}}** package installed fine into the LaCie, just make a symlink ''/run -> /var/run''.
+Configuration file is **''/etc/minidlna.conf''**, default share directory is **''/var/lib/minidlna''**, used ports are **8200/TCP** (http and media transfer), **3307/UDP** and **1900/UDP**.
 ===== Web Links =====
@@ Line 1060: / Line 1117: @@
   * [[http://wiki.nas-portal.org/index.php/LaCie|Lacie @ NAS-Portal]]
   * [[http://www.lacie-nas.org/doku.php|LaCie NAS]] another Wiki, with U-Boot NetConsole
+  * [[http://lacie-nas.org/doku.php?id=nastools|Project nas-tools]]
   * [[http://www.steppen-wolf.eu/blog/2009/11/18/lacie-2big-network-hack-telnet-openssh-ntpd-cups-and-more/|LaCie 2Big Network hack: telnet, openssh, ntpd, cups and more..]] in Italian.
   * [[http://luon.net/~admar/journal/LaCieEthernetDiskMini.html|LaCie Ethernet Disk mini]]. Interesting part on how to install a Debian into a chroot.