NAV_PROT_LEN 195 drivers/net/wireless/realtek/rtlwifi/rtl8192se/reg.h #define NAV_PROT_LEN 0x0234 NAV_PROT_LEN 30 drivers/staging/rtl8712/rtl8712_wmac_regdef.h #define NAV_PROT_LEN (RTL8712_WMAC_ + 0x34)