Add a comparison of interface information.

posts/2026/10/15/qcncm865-mt7927-comparison/index.org

@@ -92,8 +92,112 @@ For the signal strength test, I ran src_bash[:exports code]{iw dev wlan0 link} e
 
 ** Interface Information
 
-# TODO: Is there anything interesting to report here?
+In addition to measuring the performance of the cards, I also dumped information about the cards by reading from =/sys=, executing =iw list=, and executing =iw reg get=. The differences I found noteworthy are below.
 
+# TODO: See what iw reg means with the 2nd entry.
+
+*** Supported Ciphers
+The MT7927 supports a couple more ciphers than the QCNCM865. That being said, those two additional supported ciphers are for WEP [[https://en.wikipedia.org/wiki/Wired_Equivalent_Privacy#Weak_security][which should not be in use in 2026]].
+
+**** MT7927
+- CCMP-128
+- CCMP-256
+- CMAC
+- CMAC-256
+- GCMP-128
+- GCMP-256
+- GMAC-128
+- GMAC-256
+- TKIP
+- WEP104
+- WEP40
+**** QCNCM865
+- CCMP-128
+- CCMP-256
+- CMAC
+- CMAC-256
+- GCMP-128
+- GCMP-256
+- GMAC-128
+- GMAC-256
+- TKIP
+*** Beamformee SS in 6GHz
+# TODO add explanation
+**** MT7927
+#+begin_src text
+  Beamformee SS (80MHz): 1
+  Beamformee SS (160MHz): 1
+  Beamformee SS (320MHz): 1
+#+end_src
+**** QCNCM865
+#+begin_src text
+  Beamformee SS (80MHz): 7
+  Beamformee SS (160MHz): 3
+  Beamformee SS (320MHz): 3
+#+end_src
+*** WoWLAN support
+# TODO add explanation
+**** MT7927
+#+begin_src text
+  ,* wake up on disconnect
+  ,* wake up on magic packet
+  ,* wake up on pattern match, up to 1 patterns of 1-128 bytes,
+    maximum packet offset 0 bytes
+  ,* can do GTK rekeying
+  ,* wake up on network detection, up to 10 match sets
+#+end_src
+**** QCNCM865
+#+begin_src text
+  ,* wake up on disconnect
+  ,* wake up on magic packet
+  ,* wake up on pattern match, up to 22 patterns of 1-134 bytes,
+    maximum packet offset 114 bytes
+  ,* can do GTK rekeying
+  ,* wake up on GTK rekey failure
+  ,* wake up on network detection, up to 16 match sets
+#+end_src
+*** Supported extended features
+# TODO add explanation
+**** MT7927
+#+begin_src text
+  ,* [ RRM ]: RRM
+  ,* [ SET_SCAN_DWELL ]: scan dwell setting
+  ,* [ BEACON_RATE_LEGACY ]: legacy beacon rate setting
+  ,* [ BEACON_RATE_HT ]: HT beacon rate setting
+  ,* [ BEACON_RATE_VHT ]: VHT beacon rate setting
+  ,* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
+  ,* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
+  ,* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
+  ,* [ ACK_SIGNAL_SUPPORT ]: ack signal level support
+  ,* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
+  ,* [ CAN_REPLACE_PTK0 ]: can safely replace PTK 0 when rekeying
+  ,* [ AIRTIME_FAIRNESS ]: airtime fairness scheduling
+  ,* [ AQL ]: Airtime Queue Limits (AQL)
+  ,* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
+  ,* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
+  ,* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
+  ,* [ BEACON_RATE_HE ]: HE beacon rate support (AP/mesh)
+  ,* [ POWERED_ADDR_CHANGE ]: can change MAC address while up
+#+end_src
+**** QCNCM865
+#+begin_src text
+  ,* [ RRM ]: RRM
+  ,* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
+  ,* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
+  ,* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
+  ,* [ ACK_SIGNAL_SUPPORT ]: ack signal level support
+  ,* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
+  ,* [ STA_TX_PWR ]: TX power control per station
+  ,* [ BEACON_PROTECTION ]: beacon protection support
+  ,* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
+  ,* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
+  ,* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
+  ,* [ FILS_DISCOVERY ]: FILS discovery frame transmission support
+  ,* [ UNSOL_BCAST_PROBE_RESP ]: unsolicated broadcast probe response transmission support
+  ,* [ BSS_COLOR ]: BSS coloring support
+  ,* [ POWERED_ADDR_CHANGE ]: can change MAC address while up
+  ,* [ PUNCT ]: preamble puncturing in AP mode
+#+end_src
 * Test Setup
 
 My test setup consisted of a Framework 13 AMD 7040 laptop with each of the wifi cards, connecting to a [[https://techspecs.ui.com/unifi/wifi/u7-pro][Ubiquiti UniFi U7 Pro]].