This page contains a list of specifications used to write Linux drivers for several wireless cards, and which, alternatively, can be used to write drivers for any other platforms.
Broadcom hardware specifications
The ["../../users/Drivers/b43" b43 driver] was written based on the reverse engineered specification. This device currently is known to use two different firmware types, each of which changes the behavior of the driver. Because of this we have two different drivers for each handle each firmware. Fortunately we have specifications written for both firmwares.
[http://bcm-specs.sipsolutions.net/ Specifications for v3 firmware]
[http://bcm-v4.sipsolutions.net/ Specifications for V4 firmware]
Atheros ar5000 specifications
Since hardware component of the Linux driver was based on the [http://madwifi.org/wiki/About/OpenHAL Linux OpenHAL], and since the OpenHAL was based on Reyk Floeter's [http://madwifi.org/wiki/About/ar5k ar5k] we had no specifications but ar5k to base work for a driver. We however can, and will, start a specifications page for Atheros ar5000 devices. This effort is to go under the http://OpenHAL.org page.
An ongoing project is at http://airgo.wdwconsulting.net/mymoin/