I am modifying WLAN card driver modules from linux backports. Currently, I've modified ath9k_htc and iwlwifi.
Apparently, I remember that both dirvers have been working together when I have not modified dirvers at all. But I can't make both drivers work simultaneously after modifying drivers.
Here's a problem I have:
1: install only ath9k_htc:
make defconfig-ath9k
make
sudo make install
sudo reboot
lsmod
There is no iwlwifi listed
2: install only iwlwifi:
make defconfig-iwlwifi
make
sudo make install
sudo reboot
lsmod
There is no ath9k* listed
3: install both (I am not sure if what I've done is on the right way):
make defconfig-ath9k defconfig-iwlwifi
make
sudo make install
sudo reboot
lsmod
Then, only one of two drivers are listed in lsmod.
Suppose ath9k_htc is working, then iwlwifi throws such messages in dmesg:
[ 22.563631] iwldvm: disagrees about version of symbol ieee80211_start_tx_ba_cb_irqsafe
[ 22.563637] iwldvm: Unknown symbol ieee80211_start_tx_ba_cb_irqsafe (err -22)
[ 22.563645] iwldvm: disagrees about version of symbol ieee80211_report_wowlan_wakeup
[ 22.563647] iwldvm: Unknown symbol ieee80211_report_wowlan_wakeup (err -22)
[ 22.563657] iwldvm: disagrees about version of symbol ieee80211_chswitch_done
[ 22.563660] iwldvm: Unknown symbol ieee80211_chswitch_done (err -22)
[ 22.563718] iwldvm: disagrees about version of symbol ieee80211_alloc_hw
[ 22.563720] iwldvm: Unknown symbol ieee80211_alloc_hw (err -22)
[ 22.563801] iwldvm: disagrees about version of symbol ieee80211_find_sta
[ 22.563803] iwldvm: Unknown symbol ieee80211_find_sta (err -22)
[ 22.563809] iwldvm: disagrees about version of symbol ieee80211_iter_keys
[ 22.563811] iwldvm: Unknown symbol ieee80211_iter_keys (err -22)
[ 22.563852] iwldvm: disagrees about version of symbol ieee80211_enable_rssi_reports
[ 22.563854] iwldvm: Unknown symbol ieee80211_enable_rssi_reports (err -22)
[ 22.563862] iwldvm: disagrees about version of symbol ieee80211_stop_tx_ba_cb_irqsafe
[ 22.563865] iwldvm: Unknown symbol ieee80211_stop_tx_ba_cb_irqsafe (err -22)
[ 22.563873] iwldvm: disagrees about version of symbol ieee80211_ave_rssi
[ 22.563875] iwldvm: Unknown symbol ieee80211_ave_rssi (err -22)
[ 22.563992] iwldvm: disagrees about version of symbol ieee80211_resume_disconnect
[ 22.563995] iwldvm: Unknown symbol ieee80211_resume_disconnect (err -22)
[ 22.564004] iwldvm: disagrees about version of symbol ieee80211_beacon_get_tim
[ 22.564006] iwldvm: Unknown symbol ieee80211_beacon_get_tim (err -22)
[ 22.564021] iwldvm: disagrees about version of symbol ieee80211_request_smps
[ 22.564023] iwldvm: Unknown symbol ieee80211_request_smps (err -22)
[ 22.564070] iwldvm: disagrees about version of symbol ieee80211_disable_rssi_reports
[ 22.564072] iwldvm: Unknown symbol ieee80211_disable_rssi_reports (err -22)
Vice versa for ath9k_htc when iwlwifi is working.
Could anyone give me an adivce to make both drivers work together?
I'm not sure if this is still relevant but try
make defconfig-wifi
make menuconfig // select all the drivers you want (Atheros, Intel, etc.)
make & make install
You will get all the drivers you selected installed.