Is there a way to discover firmware version, country code or other information on a running system?

Answer

We provide a sysfs entry for this purpose:

cat /sys/class/net/wlan0/device/lrd/info
Driver name : lrdmwl
Chip type   : 88W8997-PCIE
HW  version : 7
FW  version : 5.4.29.5
DRV version : 8.1.0.11
OTP version : 1
OTP num mac : 2
Radio Type  : ST
MAC address : c0:ee:40:50:00:00
Region code : 0xff (0xff)
Country code: '00' ('00')
TX antenna  : 2
RX antenna  : 2