168 lines
4.6 KiB
Plaintext
168 lines
4.6 KiB
Plaintext
# /etc/modprobe.d/8821cu.conf
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#
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# Purpose: Allow easy access to specific driver options.
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#
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# Note: pull-request: wireless-next-2022-12-12
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# wireless-next patches for v6.2
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# wifi: rtw88: Add rtw8821cu chipset support
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# The following line blacklists the above in-kernel driver.
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blacklist rtw88_8821cu
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#
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# Edit the following line to change, add or delete options:
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options 8821cu rtw_drv_log_level=1 rtw_led_ctrl=1 rtw_vht_enable=1 rtw_power_mgnt=1
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#
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# After editing is complete, save this file (if using nano: Ctrl + x, y, Enter)
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# and reboot to activate the changes.
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#
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# Warning: Some adapters based on the rtl8821cu chipset may require the
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# `rtw_RFE_type` option to be set. If wifi or bluetooth does not work
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# after driver installation, see the appropriate section in the below
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# documentation. This issue has not been seen on wifi only adapters.
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#
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# Documentation:
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#
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# -----
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#
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# Log options ( rtw_drv_log_level )
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#
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# 0 = NONE (default)
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# 1 = ALWAYS
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# 2 = ERROR
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# 3 = WARNING
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# 4 = INFO
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# 5 = DEBUG
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# 6 = MAX
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#
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# Note: You can save a log file that only includes RTW log entries by running
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# the following in a terminal:
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#
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# sudo ./save-log.sh
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#
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# Note: The name of the log file will be ```rtw.log```.
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#
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# -----
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#
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# LED options ( rtw_led_ctrl )
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#
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# 0 = Always off
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# 1 = Normal blink (default)
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# 2 = Always on
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#
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# -----
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#
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# VHT options ( rtw_vht_enable )
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#
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# 0 = Disable
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# 1 = Enable (default)
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# 2 = Force auto enable (use only for 5 GHz AP mode)
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#
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# Notes:
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# - A non-default setting can degrade performance greatly in managed mode.
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# - Option 2 allows 80 MHz channel width for 5GHz AP mode, such as when
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# you are using hostapd.
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#
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# -----
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#
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# Power options ( rtw_power_mgnt )
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#
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# 0 = Disable power saving
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# 1 = Power saving on, minPS (default)
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# 2 = Power saving on, maxPS (not recommended for AP mode)
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#
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# -----
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#
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# Beamforming options ( rtw_beamform_cap )
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#
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# 1 = SU Beamformer (recommended for AP mode)
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# 2 = SU Beamformee
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# 3 = SU Beamformer and SU Beamformee
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# 10= SU Beamformee and MU Beamformee (default)
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# 11= SU Beamformer and SU Beamformee and MU Beamformee
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#
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# Note: MU Beamformer is not supported.
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#
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# From the source code:
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#
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# /* /os_dep/linux/os_intfs.c
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# * BIT0: Enable VHT SU Beamformer
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# * BIT1: Enable VHT SU Beamformee
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# * BIT2: Enable VHT MU Beamformer, depend on VHT SU Beamformer
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# * BIT3: Enable VHT MU Beamformee, depend on VHT SU Beamformee
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# * BIT4: Enable HT Beamformer
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# * BIT5: Enable HT Beamformee
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# */
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#
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# -----
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#
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# DFS Options ( rtw_dfs_region_domain )
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#
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# 0 = NONE (default)
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# 1 = FCC
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# 2 = MKK
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# 3 = ETSI
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#
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# Notes:
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# - Activates DFS channels in AP mode.
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# - DFS FCC 80 MHz channels for hostapd: 52(58), 100(106), 116(122) and 132(138)
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# - For more information: https://en.wikipedia.org/wiki/List_of_WLAN_channels
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#
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# Note: An AP needs to listen on a DFS channel for a period of 60 seconds
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# before transmitting on the channel. If any radar pulses are detected,
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# the AP cannot use that channel and will have to try a different channel.
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#
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# -----
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#
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# Select RFE type ( rtw_RFE_type )
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#
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# 0 = (2-Ant, DPDT), (2G_WLG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW)
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# 1 = (1-Ant, SPDT@Ant1), (2G_WLG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW)
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# 2 = (1-Ant, SPDT@Ant1) , (2G_BTG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW)
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# 3 = (1-Ant, DPDT@Ant2), (2G_WLG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW)
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# 4 = (1-Ant, DPDT@Ant2), (2G_BTG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW)
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# 5 = (2-Ant), (2G_WLG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW)
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# 6 = (2-Ant), (2G_WLG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW)
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# 7 = (1-Ant), (2G_BTG, iPA, iLNA, iSW), (5G, iPA, iLNA, iSW) (try this setting first)
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# 64 = this appears to be the default on adapters that do not support bluetooth
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#
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# Note: RFE Type is used to set antenna isolation and the BT coexistence
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# mechanism. Some adapters require this setting and some do not. It may be
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# necessary to try different settings to determine which setting is optimal
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# for your adapter.
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#
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# -----
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#
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# To see all options that are available:
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#
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# $ ls /sys/module/8821cu/parameters/
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#
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# -----
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#
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# To see the values that are in use:
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#
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# $ grep [[:alnum:]] /sys/module/8821cu/parameters/*
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#
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# -----
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#
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# hostapd setup information for rtl8821cu
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# Note: The best settings can vary but the following may be a good place to start.
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#
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# /etc/modprobe.d/8821cu.conf
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# options 8821cu rtw_drv_log_level=0 rtw_led_ctrl=0 rtw_vht_enable=2 rtw_power_mgnt=1 rtw_dfs_region_domain=1
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#
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# Note: The best setting for `rtw_dfs_region_domain=` will depend on your location.
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#
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# /etc/hostapd/hostapd.conf
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#
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# hw ht capab: 0x862
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# ht_capab=[HT40+][HT40-][SHORT-GI-20][SHORT-GI-40][MAX-AMSDU-7935]
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#
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# hw vht capab: 0x03c00022
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# vht_capab=[MAX-MPDU-11454][SHORT-GI-80][HTC-VHT][MAX-A-MPDU-LEN-EXP7]
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#
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# -----
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