Junior, baixei o madwifi 9.4, extrai ele e quando executei make tive a seguinte saida:
[email protected]:/home/rodrigo/madwifi-0.9.4# make
Checking requirements... ok.
Checking kernel configuration... ok.
make -C /lib/modules/2.6.27-9-generic/build SUBDIRS=/home/rodrigo/madwifi-0.9.4 modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.27-9-generic'
CC [M] /home/rodrigo/madwifi-0.9.4/ath/if_ath.o
CC [M] /home/rodrigo/madwifi-0.9.4/ath/if_ath_pci.o
LD [M] /home/rodrigo/madwifi-0.9.4/ath/ath_pci.o
CC [M] /home/rodrigo/madwifi-0.9.4/ath_hal/ah_os.o
HOSTCC /home/rodrigo/madwifi-0.9.4/ath_hal/uudecode
UUDECODE /home/rodrigo/madwifi-0.9.4/ath_hal/x86_64-elf.hal.o
LD [M] /home/rodrigo/madwifi-0.9.4/ath_hal/ath_hal.o
CC [M] /home/rodrigo/madwifi-0.9.4/ath_rate/amrr/amrr.o
LD [M] /home/rodrigo/madwifi-0.9.4/ath_rate/amrr/ath_rate_amrr.o
CC [M] /home/rodrigo/madwifi-0.9.4/ath_rate/minstrel/minstrel.o
LD [M] /home/rodrigo/madwifi-0.9.4/ath_rate/minstrel/ath_rate_minstrel.o
CC [M] /home/rodrigo/madwifi-0.9.4/ath_rate/onoe/onoe.o
LD [M] /home/rodrigo/madwifi-0.9.4/ath_rate/onoe/ath_rate_onoe.o
CC [M] /home/rodrigo/madwifi-0.9.4/ath_rate/sample/sample.o
LD [M] /home/rodrigo/madwifi-0.9.4/ath_rate/sample/ath_rate_sample.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/if_media.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211_beacon.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211_crypto.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211_crypto_none.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211_input.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211_node.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211_output.o
CC [M] /home/rodrigo/madwifi-0.9.4/net80211/ieee80211_power.o
/home/rodrigo/madwifi-0.9.4/net80211/ieee80211_power.c: In function 'ieee80211_pwrsave':
/home/rodrigo/madwifi-0.9.4/net80211/ieee80211_power.c:240: error: implicit declaration of function '__skb_append'
make[3]: *** [/home/rodrigo/madwifi-0.9.4/net80211/ieee80211_power.o] Error 1
make[2]: *** [/home/rodrigo/madwifi-0.9.4/net80211] Error 2
make[1]: *** [_module_/home/rodrigo/madwifi-0.9.4] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.27-9-generic'
make: ** [modules] Erro 2
Você (ou alguém que esteja por dentro do assunto) poderia me ajudar?