Why ssid is a required parameter for wpa_supplicant?

[Yue Wu]

Hi, list,

As the title, I like to use bssid to specify the wireless networking I
want to connect, so if ssid changed, I don't need to change the
configure file. Just curious why ssid is a required parameter, it
would be nice if only one of ssid and bssid is required instead.

-- 
Regards,
Yue Wu

Key Laboratory of Modern Chinese Medicines
Department of Traditional Chinese Medicine
China Pharmaceutical University
No.24, Tongjia Xiang Street, Nanjing 210009, China