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--- doc:appunti:hardware:lacie_d2_network_2 [2011/03/23 10:40] – [Cross compile a Debian kernel] niccolo
+++ doc:appunti:hardware:lacie_d2_network_2 [2014/01/28 09:22] (current) – [Hacking the LaCie d2 Network 2] niccolo
@@ Line 3: / Line 3: @@
 {{.:lacie:lacie_d2_network.jpg?160  |LaCie d2 Network}}
-The **LaCie d2 Network 2** is very similar to the **[[lacie_d2_network|LaCie d2 Network]]**, luckily enough the hardware is better and gives better performances. Just one thing is worst than before: the Wake-On-LAN is not longer handled by the U-Boot code, it is handled by the init scripts. This means that if you install a plain GNU/Linux system, you must install special software to get the Wake-On-LAN function (if it is possible at all).
+The **LaCie d2 Network 2** is very similar to the **[[lacie_d2_network|LaCie d2 Network]]**, luckily enough the hardware is better and gives better performances. Just one thing is worst than before: the Wake-On-LAN is not longer handled by the U-Boot code, it is handled by the init scripts. This means that if you install a plain GNU/Linux system, you must install special software to get the Wake-On-LAN function.
 The LaCie software is changed a lot. May be it is possible get root access without disassembling it, have a look at the [[#the_auto-update_function|Auto-Update function]].
@@ Line 213: / Line 213: @@
 The Wake-On-LAN is **not handled by the U-Boot code** (like in the LaCie d2 Network). When the power switch is onto the ON position, the U-Boot always begins the boot process spinning-on the disk, during the boot process a script checks if the Deep Sleep Mode is active, in that case it halts the disk and wait for the Magic Packet.
+If you install a plain Debian operating system, you can use the **[[#fake_wake-on-lan|Fake Wake-On-LAN]]** software to simulate a Wake-On-LAN.
 ===== Installing Debian =====
@@ Line 434: / Line 436: @@
 </code>
-==== Fake Wake-on-LAN ====
+===== Fake Wake-on-LAN =====
+The Ethernet chip does not have WoL capabilities (whereas the old d2 Network does), so we can only simulate it. This is my first attempt to make a software Wake-on-LAN.
-This is my first attempt to make a software Wake-on-LAN. The Ethernet chip does not have WoL capabilities (whereas the old d2 Network does), so we can only simulate it.
+At an early stage of the boot process the **''fake-on-lan''** program suspends the USB power, turn off the blue LED and suspend the disk. Then the program waits for a Wake-on-LAN Magic Packet or for a Power Button press/release before to proceed. The device is effectively powered-on and running the Linux kernel, just the USB, the LED and the disk are turned off. I'm running the program with a **Debian Squeeze** installation.
-At an early stage of the boot process we suspend the disk and wait for a Magic Packet before to proceed. So the device is effectively powered and running, just the disk and the LED are turned off. I'm running the program with a Debian Squeeze installation.
+You can download the program here: **{{.:lacie:fake-on-lan-20110324.tar.gz|fake-on-lan-20110324.tar.gz}}**.
-You can download the program here: **{{.:lacie:fake-on-lan-20110323.tar.gz|fake-on-lan-20110323.tar.gz}}**.
+===== The EEPROM =====
-This is the TODO list:
+The content of the EEPROM is exposed for read and write via the pseudo file **''/sys/bus/i2c/devices/0-0050/eeprom''**, like with the previous d2 Network model, but the meaning is changed. This is what I know:
-  * Turn off USB power too.
+^ Offset  ^ Length  ^ Content  ^
-  * Wake on power button keypress too.
+|       0 |       2 | 0x00 0x02              |
-  * Modify the standard halt sequence so it becomes a reboot followed by fake-on-lan, mybe using the relevant EEPROM bit.
+|       2 |       6 | Ethernet MAC address.  |