Hi! Two things, first, here's some details on a dongle I just got: Bus 001 Device 005: ID 2357:0108 TP-Link TL-WN822N Version 4 RTL8192EU (Physical device says version 5.20, though) usb 1-3: new high-speed USB device number 5 using xhci_hcd usb 1-3: New USB device found, idVendor=2357, idProduct=0108, bcdDevice= 2.00 usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-3: Product: 802.11n NIC usb 1-3: Manufacturer: Realtek usb 1-3: SerialNumber: 00e04c000001 usb 1-3: This Realtek USB WiFi dongle (0x2357:0x0108) is untested! usb 1-3: Please report results to Jes.Sorensen@xxxxxxxxx usb 1-3: Vendor: Realtek usb 1-3: Product: 802.11n NI usb 1-3: Serial: usb 1-3: rtl8192eu_parse_efuse: dumping efuse (0x200 bytes): usb 1-3: 00: 29 81 00 7c 01 40 03 00 usb 1-3: 08: 40 74 04 50 14 00 00 00 usb 1-3: 10: 2c 2c 2c 2d 2d 2d 2c 2d usb 1-3: 18: 2d 2d 2d f2 ef ef ff ff usb 1-3: 20: ff ff ff ff ff ff ff ff usb 1-3: 28: ff ff ff ff ff ff ff ff usb 1-3: 30: ff ff ff ff ff ff ff ff usb 1-3: 38: ff ff 27 27 27 27 27 27 usb 1-3: 40: 28 27 27 27 27 f2 ef ef usb 1-3: 48: ff ff ff ff ff ff ff ff usb 1-3: 50: ff ff ff ff ff ff ff ff usb 1-3: 58: ff ff ff ff ff ff ff ff usb 1-3: 60: ff ff ff ff ff ff ff ff usb 1-3: 68: ff ff ff ff ff ff ff ff usb 1-3: 70: ff ff ff ff ff ff ff ff usb 1-3: 78: ff ff ff ff ff ff ff ff usb 1-3: 80: ff ff ff ff ff ff ff ff usb 1-3: 88: ff ff ff ff ff ff ff ff usb 1-3: 90: ff ff ff ff ff ff ff ff usb 1-3: 98: ff ff ff ff ff ff ff ff usb 1-3: a0: ff ff ff ff ff ff ff ff usb 1-3: a8: ff ff ff ff ff ff ff ff usb 1-3: b0: ff ff ff ff ff ff ff ff usb 1-3: b8: a1 2f 23 00 00 00 ff ff usb 1-3: c0: ff 01 00 10 00 00 00 ff usb 1-3: c8: 00 00 ff ff ff ff ff ff usb 1-3: d0: 57 23 08 01 e7 47 02 d0 usb 1-3: d8: 37 45 ed 71 51 0a 03 52 usb 1-3: e0: 65 61 6c 74 65 6b 20 0e usb 1-3: e8: 03 38 30 32 2e 31 31 6e usb 1-3: f0: 20 4e 49 43 20 00 00 ff usb 1-3: f8: ff ff ff ff ff ff ff ff usb 1-3: 100: ff ff ff ff ff ff ff ff usb 1-3: 108: ff ff ff ff ff ff ff ff usb 1-3: 110: ff ff ff ff ff ff ff 0d usb 1-3: 118: 03 00 05 00 30 00 00 00 usb 1-3: 120: 00 93 ff ff ff ff ff ff usb 1-3: 128: ff ff ff ff ff ff ff ff usb 1-3: 130: f6 a8 98 2d 03 92 98 00 usb 1-3: 138: fc 8c 00 11 9b 44 02 0a usb 1-3: 140: ff ff ff ff ff ff ff ff usb 1-3: 148: ff ff ff ff ff ff ff ff usb 1-3: 150: ff ff ff ff ff ff ff ff usb 1-3: 158: ff ff ff ff ff ff ff ff usb 1-3: 160: ff ff ff ff ff ff ff ff usb 1-3: 168: ff ff ff ff ff ff ff ff usb 1-3: 170: ff ff ff ff ff ff ff ff usb 1-3: 178: ff ff ff ff ff ff ff ff usb 1-3: 180: ff ff ff ff ff ff ff ff usb 1-3: 188: ff ff ff ff ff ff ff ff usb 1-3: 190: ff ff ff ff ff ff ff ff usb 1-3: 198: ff ff ff ff ff ff ff ff usb 1-3: 1a0: ff ff ff ff ff ff ff ff usb 1-3: 1a8: ff ff ff ff ff ff ff ff usb 1-3: 1b0: ff ff ff ff ff ff ff ff usb 1-3: 1b8: ff ff ff ff ff ff ff ff usb 1-3: 1c0: ff ff ff ff ff ff ff ff usb 1-3: 1c8: ff ff ff ff ff ff ff ff usb 1-3: 1d0: ff ff ff ff ff ff ff ff usb 1-3: 1d8: ff ff ff ff ff ff ff ff usb 1-3: 1e0: ff ff ff ff ff ff ff ff usb 1-3: 1e8: ff ff ff ff ff ff ff ff usb 1-3: 1f0: ff ff ff ff ff ff ff ff usb 1-3: 1f8: ff ff ff ff ff ff ff ff usb 1-3: RTL8192EU rev B (SMIC) 2T2R, TX queues 3, WiFi=1, BT=0, GPS=0, HI PA=0 usb 1-3: RTL8192EU MAC: d0:37:45:ed:71:51 usb 1-3: rtl8xxxu: Loading firmware rtlwifi/rtl8192eu_nic.bin usb 1-3: Firmware revision 19.0 (signature 0x92e1) usbcore: registered new interface driver rtl8xxxu rtl8xxxu 1-3:1.0 wlxd03745ed7151: renamed from wlan0 Wiphy phy2 wiphy index: 2 max # scan SSIDs: 4 max scan IEs length: 2257 bytes max # sched scan SSIDs: 0 max # match sets: 0 RTS threshold: 2347 Retry short limit: 7 Retry long limit: 4 Coverage class: 0 (up to 0m) Supported Ciphers: * WEP40 (00-0f-ac:1) * WEP104 (00-0f-ac:5) * TKIP (00-0f-ac:2) * CCMP-128 (00-0f-ac:4) * CCMP-256 (00-0f-ac:10) * GCMP-128 (00-0f-ac:8) * GCMP-256 (00-0f-ac:9) Available Antennas: TX 0 RX 0 Supported interface modes: * managed * monitor Band 1: Capabilities: 0x6c HT20 SM Power Save disabled RX HT20 SGI RX HT40 SGI No RX STBC Max AMSDU length: 3839 bytes No DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 16 usec (0x07) HT TX/RX MCS rate indexes supported: 0-15, 32 Bitrates (non-HT): * 1.0 Mbps * 2.0 Mbps * 5.5 Mbps * 11.0 Mbps * 6.0 Mbps * 9.0 Mbps * 12.0 Mbps * 18.0 Mbps * 24.0 Mbps * 36.0 Mbps * 48.0 Mbps * 54.0 Mbps Frequencies: * 2412 MHz [1] (20.0 dBm) * 2417 MHz [2] (20.0 dBm) * 2422 MHz [3] (20.0 dBm) * 2427 MHz [4] (20.0 dBm) * 2432 MHz [5] (20.0 dBm) * 2437 MHz [6] (20.0 dBm) * 2442 MHz [7] (20.0 dBm) * 2447 MHz [8] (20.0 dBm) * 2452 MHz [9] (20.0 dBm) * 2457 MHz [10] (20.0 dBm) * 2462 MHz [11] (20.0 dBm) * 2467 MHz [12] (20.0 dBm) (no IR) * 2472 MHz [13] (20.0 dBm) (no IR) * 2484 MHz [14] (20.0 dBm) (no IR) Supported commands: * new_interface * set_interface * new_key * start_ap * new_station * new_mpath * set_mesh_config * set_bss * authenticate * associate * deauthenticate * disassociate * join_ibss * join_mesh * remain_on_channel * set_tx_bitrate_mask * frame * frame_wait_cancel * set_wiphy_netns * set_channel * probe_client * set_noack_map * register_beacons * start_p2p_device * set_mcast_rate * connect * disconnect * set_qos_map * set_multicast_to_unicast software interface modes (can always be added): * monitor interface combinations are not supported HT Capability overrides: * MCS: ff ff ff ff ff ff ff ff ff ff * maximum A-MSDU length * supported channel width * short GI for 40 MHz * max A-MPDU length exponent * min MPDU start spacing Device supports TX status socket option. Device supports HT-IBSS. Device supports SAE with AUTHENTICATE command Device supports low priority scan. Device supports scan flush. Device supports AP scan. Device supports per-vif TX power setting Driver supports full state transitions for AP/GO clients Driver supports a userspace MPM Device supports configuring vdev MAC-addr on create. max # scan plans: 1 max scan plan interval: -1 max scan plan iterations: 0 Supported TX frame types: * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 * P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0 Supported RX frame types: * IBSS: 0x40 0xb0 0xc0 0xd0 * managed: 0x40 0xb0 0xd0 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0 * mesh point: 0xb0 0xc0 0xd0 * P2P-client: 0x40 0xd0 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0 * P2P-device: 0x40 0xd0 Supported extended features: * [ 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 * [ SCAN_RANDOM_SN ]: use random sequence numbers in scans * [ SCAN_MIN_PREQ_CONTENT ]: use probe request with only rate IEs in scans * [ 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 This model appears to have been discussed before in 2017: https://lore.kernel.org/linux-wireless/1195e649-c57f-1247-a0dc-2f0cc0732a00@xxxxxxxxx/ and I'm seeing the same issues: it does appear to work, though it seems to not correctly do "g" or "n" speeds. It also shows very low antenna gain compared to a built-in adapter. I also note that this was added as a "known device" in commit c14239f23adb80aa2532909e312986317ba3cd09, but that commit didn't add a "tested" exception for it (which, given its poor performance seems fine). The out-of-tree driver appears to still be getting updates? https://github.com/Mange/rtl8192eu-linux-driver/commits/realtek-4.4.x Any pointers on what I can do to help improve support for this device? (Or for the 8812AU, which seems to be what's used for nearly all of the other top-selling USB wifi adapters.) And on a related note, do you have any idea what would be needed to get AP mode working for these drivers? It seems there's a firmware for it (8192eu_ap_wowlan). Thanks! -Kees -- Kees Cook
