Rg Kernel
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Summary
We are using Till Straumann's kernel patches to support the RG-1000.
They have been developed for the Linux 2.2 kernel, and I have ported them to the 2.4 series.
All the kernel changes are protected by the CONFIG_RC_1000 define which is a selectable option of the ELAN machine type.
These are the main categories of patches:
Modem Console support
The only way to have console output is to use the modem port.
This set of patches ensure that all console output is re-directed to the modem port.
Of course, the serial console need to be selected during the kernel build.
{i} Status: {OK} no problem.
RG-1000 LED's handling
Driver to handle the RG-1000 LED's.
It is used by the other drivers, and provide a fancy user-mode interface through devices. Device major is 100; minors are in the table below.
As opposed to the Airport, the RG-1000 has 8 LED's.
From top to bottom, we have:
| Description (Original usage of the LEDs) | Symbol | Minor Green | Minor Red |
| Power | o- | 0 | 1 |
| Wireless | ~ | 2 | 3 |
| Ethernet | o---o | 4 | 5 |
| Modem | ---| | 6 | 7 |
{i} Status: {OK} no problem.
LAN support
Driver to handle the network chip
Minor patches to driver/net/lance.c
{i} Status: {OK} no problem.
WLAN support
Driver to handle wireless card
This is a bit more complex: the RG-1000 as a PCMCIA bridge which is compatible with a i82365. But we do not want to load the whole PCMCIA/cardmgr stuff.
So we have an additional driver -- driver/net/wireless/orinoco_rc1000.c -- which works like the PLX support (orinoco_plx.c): we initialize the PCMCIA bridge, setup the card and pass the control to the original Orinoco drivers.
{i} Status: {OK} no problem.
PPPOX support
Support for PPPOX
{i} Status: {X} No plan -- not in the scope of the project
Idle Loop
Although I did not find any references of this on the web, my RG-1000 crashes as soon it enters the idle loop.
I took me a long time to debug this, but the problem can be easily solved by booting with the no-hlt command-line parameter.
