MAX_CHANNEL_NUM 31 drivers/staging/rtl8188eu/include/rtw_rf.h #define MAX_CHANNEL_NUM 14 /* 2.4 GHz only */ MAX_CHANNEL_NUM 33 drivers/staging/rtl8723bs/include/rtw_rf.h #define MAX_CHANNEL_NUM 38/* 14+24 */ MAX_CHANNEL_NUM 81 sound/soc/dwc/local.h #define MAX_CHANNEL_NUM 8