ls /lib/firmware/rtlwifi 
Realtek-Firmware-License.txt  rtl8192cufw_TMSC.bin  rtl8723aufw_B.bin
rtl8188efw.bin                rtl8192defw_12.bin    rtl8723aufw_B_NoBT.bin
rtl8188eufw.bin               rtl8192defw.bin       rtl8723befw.bin
rtl8192cfw.bin                rtl8192eefw.bin       rtl8723fw_B.bin
rtl8192cfwU_B.bin             rtl8192eefw_new.bin   rtl8723fw.bin
rtl8192cfwU.bin               rtl8192sefw.bin       rtl8812aefw.bin
rtl8192cufw_A.bin             rtl8192sefw.old.bin   rtl8812aefw_wowlan.bin
rtl8192cufw_B.bin             rtl8712u.bin          rtl8821aefw.bin
rtl8192cufw.bin               rtl8723aufw_A.bin     rtl8821aefw_wowlan.bin