Differences

This shows you the differences between two versions of the page.

--- doc:appunti:hardware:lacie_d2_network_2 [2011/01/28 11:11] – [Hacking the LaCie d2 Network 2] niccolo
+++ doc:appunti:hardware:lacie_d2_network_2 [2014/01/28 09:20] – [Wake-On-LAN] niccolo
@@ 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 433: / Line 435: @@
 dd if=uImage of=/dev/sda6
 </code>
+===== 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.
+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.
+You can download the program here: **{{.:lacie:fake-on-lan-20110324.tar.gz|fake-on-lan-20110324.tar.gz}}**.
+===== The EEPROM =====
+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:
+^ Offset  ^ Length  ^ Content  ^
+|       0 |       2 | 0x00 0x02              |
+|       2 |       6 | Ethernet MAC address.  |