I have a laptop (HP EliteBook 2540p) that contains a Broadcom B4312 (14e4:4315) LP-PHY WiFi chip. I want to set the chip in master mode (ultimate goal: an Ethernet to Wireless bridge).
I have blacklisted the Broadcom STA proprietary driver (wl.ko) and installed the firmware blobs for the open-source b43 driver (firmware-b43-lpphy-installer).
The b43 driver is supposed to support master mode:
But when I try to enable it (sudo iwconfig wlan0 mode master) I get:
Error for wireless request "Set Mode" (8B06): SET failed for device wlan0; Invalid argument.
The other modes work fine (even monitor mode, for example).
Does anyone know why this doesn't work? Is this an LP-PHY issue?