CHANNEL_GROUP_MAX  104 drivers/net/wireless/realtek/rtlwifi/wifi.h #define CHANNEL_GROUP_MAX	(3 + 9)	/*  ch1~3, 4~9, 10~14 = three groups */
CHANNEL_GROUP_MAX   53 drivers/staging/rtl8723bs/include/hal_data.h #define CHANNEL_GROUP_MAX		3+9	/*  ch1~3, ch4~9, ch10~14 total three groups */