Extract squashfs and brcm firmware from TRX file

gcc extract-trx.c -o extract-trx
./extract-trx file.trx

The dhd.ko file will be in lib/modules/2.6.36.4brcmarm/kernel/drivers/net/dhd/.
The dhd24.ko file in lib/modules/2.6.36.4brcmarm/kernel/drivers/net/dhd24/ will include multiple brcm firmwares for different chips.