Hi !
I want to use LM842 USB stick on a Raspberry Pi 4 using Raspberry Pi OS
(64-bit Debian Bookworm with kernel 6.6.20), but the driver get stucked.
The LM842 on Raspi is used as AP. Here I show how I created the AP:
sudo nmcli con add type wifi ifname wlan1 mode ap con-name TEST-AP
ssid TEST autoconnect false
sudo nmcli con modify TEST-AP 802-11-wireless.band bg
sudo nmcli con modify TEST-AP 802-11-wireless.channel 6
sudo nmcli con modify TEST-AP 802-11-wireless.cloned-mac-address
00:12:34:56:78:9a
sudo nmcli con modify TEST-AP ipv4.method shared ipv4.address 192.168.244.1/24
sudo nmcli con modify TEST-AP ipv6.method disabled
sudo nmcli con modify TEST-AP wifi-sec.key-mgmt wpa-psk
sudo nmcli con modify TEST-AP wifi-sec.psk "mypassword"
sudo nmcli con up TEST-AP
Here is the kernel log with 2 kernel traces:
============plug-in LM842 USB stick ===========
Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: new high-speed USB device
number 3 using xhci_hcd
Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: New USB device found,
idVendor=0bda, idProduct=c82c, bcdDevice= 0.00
Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: New USB device strings:
Mfr=1, Product=2, SerialNumber=3
Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: Product: 802.11ac NIC
Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: Manufacturer: Realtek
Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: SerialNumber: 123456
Apr 12 14:36:33 lite-61 kernel: usbcore: registered new interface driver btusb
Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: examining
hci_ver=0a hci_rev=000c lmp_ver=0a lmp_subver=8822
Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: rom_version
status=0 version=3
Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: loading
rtl_bt/rtl8822cu_fw.bin
Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: loading
rtl_bt/rtl8822cu_config.bin
Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: cfg_sz 6, total sz 35990
Apr 12 14:36:33 lite-61 kernel: rtw_8822cu 1-1.3:1.2: WOW Firmware
version 9.9.4, H2C version 15
Apr 12 14:36:33 lite-61 kernel: rtw_8822cu 1-1.3:1.2: Firmware version
9.9.15, H2C version 15
Apr 12 14:36:34 lite-61 kernel: Bluetooth: hci1: RTL: fw version 0x0cc6d2e3
Apr 12 14:36:34 lite-61 kernel: Bluetooth: MGMT ver 1.22
Apr 12 14:36:34 lite-61 kernel: usbcore: registered new interface
driver rtw_8822cu
===========AP is started, client connect to
AP===============================================================
===========send some test data with iperf3 30-45 min (UDP/TCP test
data)=====================================
===========iperf3 -c 192.168.244.1 -u -i 1 -t 600 -O 5 || iperf3 -c
192.168.244.1 -i 1 -t 600 -O 5==========
Apr 12 14:41:01 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 14:41:01 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 14:57:04 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 14:57:04 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 14:57:15 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 15:07:15 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
=========here it get stalled : the connection is broken=========
=========AP is not anymore visible==============================
Apr 12 15:17:19 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 15:17:19 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 15:17:21 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 15:17:24 lite-61 kernel: rtw_8822cu 1-1.3:1.2: error beacon valid
Apr 12 15:17:24 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
download drv rsvd page
=============shut down AP in Raspi(sudo nmcli con down TEST-AP)===========
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: error beacon valid
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
download rsvd page
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
download firmware
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: leave idle state failed
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to send h2c command
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to send h2c command
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to send h2c command
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to leave ips state
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to leave idle state
Apr 12 15:23:47 lite-61 kernel: ------------[ cut here ]------------
Apr 12 15:23:47 lite-61 kernel: WARNING: CPU: 0 PID: 513 at
net/wireless/core.c:1518 cfg80211_netdev_notifier_call+0x3a4/0x558
[cfg80211]
Apr 12 15:23:47 lite-61 kernel: Modules linked in: ctr ccm
nft_reject_ipv4 nf_reject_ipv4 nft_reject nft_ct nft_masq
nft_chain_nat nf_tables nfnetlink nf_nat_h323 nf_conntrack_h323
nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_sip
nf_conntrack_sip nf_nat_irc nf_conntrack_irc nf_nat_ftp
nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
rtw88_8822cu rtw88_8822c rtw88_usb rtw88_core mac80211 btusb btrtl
btintel libarc4 cmac algif_hash aes_arm64 aes_generic algif_skcipher
af_alg bnep brcmfmac_wcc brcmfmac brcmutil cfg80211 hci_uart btbcm
bluetooth vc4 v3d gpu_sched drm_shmem_helper snd_soc_hdmi_codec
raspberrypi_hwmon drm_display_helper ecdh_generic cec ecc
drm_dma_helper rpivid_hevc(C) bcm2835_v4l2(C) bcm2835_codec(C)
bcm2835_isp(C) binfmt_misc drm_kms_helper rfkill bcm2835_mmal_vchiq(C)
v4l2_mem2mem snd_soc_core videobuf2_vmalloc libaes
videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 snd_compress
videodev snd_pcm_dmaengine snd_bcm2835(C) snd_pcm videobuf2_common
vc_sm_cma(C) mc raspberrypi_gpiomem
Apr 12 15:23:47 lite-61 kernel: snd_timer snd nvmem_rmem
uio_pdrv_genirq uio drm fuse dm_mod drm_panel_orientation_quirks
backlight ip_tables x_tables ipv6 i2c_brcmstb
Apr 12 15:23:47 lite-61 kernel: CPU: 0 PID: 513 Comm: NetworkManager
Tainted: G C 6.6.20+rpt-rpi-v8 #1 Debian
1:6.6.20-1+rpt1
Apr 12 15:23:47 lite-61 kernel: Hardware name: Raspberry Pi 4 Model B
Rev 1.5 (DT)
Apr 12 15:23:47 lite-61 kernel: pstate: 60000005 (nZCv daif -PAN -UAO
-TCO -DIT -SSBS BTYPE=--)
Apr 12 15:23:47 lite-61 kernel: pc :
cfg80211_netdev_notifier_call+0x3a4/0x558 [cfg80211]
Apr 12 15:23:47 lite-61 kernel: lr :
cfg80211_netdev_notifier_call+0x230/0x558 [cfg80211]
Apr 12 15:23:47 lite-61 kernel: sp : ffffffc080ba32e0
Apr 12 15:23:47 lite-61 kernel: x29: ffffffc080ba32e0 x28:
ffffffec109ec868 x27: ffffffec10974300
Apr 12 15:23:47 lite-61 kernel: x26: ffffffec8b22d850 x25:
ffffffec8ae94008 x24: ffffffc080ba35c0
Apr 12 15:23:47 lite-61 kernel: x23: 0000000000000002 x22:
ffffff8036be0000 x21: ffffff8036be03c0
Apr 12 15:23:47 lite-61 kernel: x20: ffffff8034ca8000 x19:
ffffff8034ca8950 x18: 0000000000000000
Apr 12 15:23:47 lite-61 kernel: x17: ffffff93b02ba000 x16:
ffffffec8a8fd448 x15: 0000000000070014
Apr 12 15:23:47 lite-61 kernel: x14: ffffffec8b54ef60 x13:
0000000000000010 x12: 0000001000001780
Apr 12 15:23:47 lite-61 kernel: x11: 0000000000000000 x10:
0000000000000000 x9 : ffffffec10974530
Apr 12 15:23:47 lite-61 kernel: x8 : ffffffc080ba32c8 x7 :
ffffff80051d0000 x6 : 0000000000000000
Apr 12 15:23:47 lite-61 kernel: x5 : 0000000000000080 x4 :
0000000000000000 x3 : 0000000000000000
Apr 12 15:23:47 lite-61 kernel: x2 : ffffff8004049ec0 x1 :
ffffff8034ca8950 x0 : 0000000000000000
Apr 12 15:23:47 lite-61 kernel: Call trace:
Apr 12 15:23:47 lite-61 kernel:
cfg80211_netdev_notifier_call+0x3a4/0x558 [cfg80211]
Apr 12 15:23:47 lite-61 kernel: notifier_call_chain+0x78/0x148
Apr 12 15:23:47 lite-61 kernel: raw_notifier_call_chain+0x20/0x38
Apr 12 15:23:47 lite-61 kernel: call_netdevice_notifiers_info+0x60/0xb8
Apr 12 15:23:47 lite-61 kernel: __dev_notify_flags+0xbc/0xf0
Apr 12 15:23:47 lite-61 kernel: dev_change_flags+0x5c/0x80
Apr 12 15:23:47 lite-61 kernel: do_setlink+0x28c/0xef8
Apr 12 15:23:47 lite-61 kernel: __rtnl_newlink+0x520/0x898
Apr 12 15:23:47 lite-61 kernel: rtnl_newlink+0x58/0x90
Apr 12 15:23:47 lite-61 kernel: rtnetlink_rcv_msg+0x134/0x390
Apr 12 15:23:47 lite-61 kernel: netlink_rcv_skb+0x64/0x138
Apr 12 15:23:47 lite-61 kernel: rtnetlink_rcv+0x20/0x38
Apr 12 15:23:47 lite-61 kernel: netlink_unicast+0x2fc/0x370
Apr 12 15:23:47 lite-61 kernel: netlink_sendmsg+0x1c4/0x448
Apr 12 15:23:47 lite-61 kernel: __sock_sendmsg+0x64/0xc0
Apr 12 15:23:47 lite-61 kernel: ____sys_sendmsg+0x260/0x298
Apr 12 15:23:47 lite-61 kernel: ___sys_sendmsg+0xb4/0x110
Apr 12 15:23:47 lite-61 kernel: __sys_sendmsg+0x8c/0xf0
Apr 12 15:23:47 lite-61 kernel: __arm64_sys_sendmsg+0x2c/0x40
Apr 12 15:23:47 lite-61 kernel: invoke_syscall+0x50/0x128
Apr 12 15:23:47 lite-61 kernel: el0_svc_common.constprop.0+0x48/0xf0
Apr 12 15:23:47 lite-61 kernel: do_el0_svc+0x24/0x38
Apr 12 15:23:47 lite-61 kernel: el0_svc+0x40/0xe8
Apr 12 15:23:47 lite-61 kernel: el0t_64_sync_handler+0x100/0x130
Apr 12 15:23:47 lite-61 kernel: el0t_64_sync+0x190/0x198
Apr 12 15:23:47 lite-61 kernel: ---[ end trace 0000000000000000 ]---
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: error beacon valid
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
download rsvd page
Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
download firmware
Apr 12 15:23:48 lite-61 kernel: warning: `iwconfig' uses wireless
extensions which will stop working for Wi-Fi 7 hardware; use nl80211
=============plug-out LM842 USB stick ===========
Apr 12 15:25:09 lite-61 kernel: usb 1-1.3: USB disconnect, device number 3
Apr 12 15:25:09 lite-61 kernel: ------------[ cut here ]------------
Apr 12 15:25:09 lite-61 kernel: Have pending ack frames!
Apr 12 15:25:09 lite-61 kernel: WARNING: CPU: 0 PID: 3332 at
net/mac80211/main.c:1510 ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
Apr 12 15:25:09 lite-61 kernel: Modules linked in: ctr ccm
nft_reject_ipv4 nf_reject_ipv4 nft_reject nft_ct nft_masq
nft_chain_nat nf_tables nfnetlink nf_nat_h323 nf_conntrack_h323
nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_sip
nf_conntrack_sip nf_nat_irc nf_conntrack_irc nf_nat_ftp
nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
rtw88_8822cu rtw88_8822c rtw88_usb rtw88_core mac80211 btusb btrtl
btintel libarc4 cmac algif_hash aes_arm64 aes_generic algif_skcipher
af_alg bnep brcmfmac_wcc brcmfmac brcmutil cfg80211 hci_uart btbcm
bluetooth vc4 v3d gpu_sched drm_shmem_helper snd_soc_hdmi_codec
raspberrypi_hwmon drm_display_helper ecdh_generic cec ecc
drm_dma_helper rpivid_hevc(C) bcm2835_v4l2(C) bcm2835_codec(C)
bcm2835_isp(C) binfmt_misc drm_kms_helper rfkill bcm2835_mmal_vchiq(C)
v4l2_mem2mem snd_soc_core videobuf2_vmalloc libaes
videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 snd_compress
videodev snd_pcm_dmaengine snd_bcm2835(C) snd_pcm videobuf2_common
vc_sm_cma(C) mc raspberrypi_gpiomem
Apr 12 15:25:09 lite-61 kernel: snd_timer snd nvmem_rmem
uio_pdrv_genirq uio drm fuse dm_mod drm_panel_orientation_quirks
backlight ip_tables x_tables ipv6 i2c_brcmstb
Apr 12 15:25:09 lite-61 kernel: CPU: 0 PID: 3332 Comm: kworker/0:1
Tainted: G WC 6.6.20+rpt-rpi-v8 #1 Debian
1:6.6.20-1+rpt1
Apr 12 15:25:09 lite-61 kernel: Hardware name: Raspberry Pi 4 Model B
Rev 1.5 (DT)
Apr 12 15:25:09 lite-61 kernel: Workqueue: usb_hub_wq hub_event
Apr 12 15:25:09 lite-61 kernel: pstate: 60000005 (nZCv daif -PAN -UAO
-TCO -DIT -SSBS BTYPE=--)
Apr 12 15:25:09 lite-61 kernel: pc :
ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
Apr 12 15:25:09 lite-61 kernel: lr :
ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
Apr 12 15:25:09 lite-61 kernel: sp : ffffffc0872bb910
Apr 12 15:25:09 lite-61 kernel: x29: ffffffc0872bb910 x28:
0000000000000002 x27: ffffff80027fe000
Apr 12 15:25:09 lite-61 kernel: x26: ffffff800315f000 x25:
ffffff800315f0a8 x24: ffffff8036be1fa0
Apr 12 15:25:09 lite-61 kernel: x23: 0000000000000000 x22:
000000007fffffff x21: ffffffec10b2e480
Apr 12 15:25:09 lite-61 kernel: x20: 0000000000000000 x19:
ffffff80047d5f00 x18: ffffffc080d2bc78
Apr 12 15:25:09 lite-61 kernel: x17: ffffffec8b382740 x16:
ffffffec89c8efa0 x15: 0000000000000040
Apr 12 15:25:09 lite-61 kernel: x14: ffffff8036be1fa0 x13:
2173656d61726620 x12: 6b636120676e6964
Apr 12 15:25:09 lite-61 kernel: x11: fffffffffffe0000 x10:
ffffffec8b2a3708 x9 : ffffffec89d0946c
Apr 12 15:25:09 lite-61 kernel: x8 : 00000000ffffefff x7 :
ffffffec8b2a3708 x6 : 80000000fffff000
Apr 12 15:25:09 lite-61 kernel: x5 : ffffff803b150d48 x4 :
0000000000000000 x3 : 0000000000000027
Apr 12 15:25:09 lite-61 kernel: x2 : 0000000000000000 x1 :
0000000000000000 x0 : ffffff8002f8dc40
Apr 12 15:25:09 lite-61 kernel: Call trace:
Apr 12 15:25:09 lite-61 kernel: ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
Apr 12 15:25:09 lite-61 kernel: idr_for_each+0x6c/0xf0
Apr 12 15:25:09 lite-61 kernel: ieee80211_free_hw+0x48/0xc0 [mac80211]
Apr 12 15:25:09 lite-61 kernel: rtw_usb_disconnect+0xc4/0x108 [rtw88_usb]
Apr 12 15:25:09 lite-61 kernel: usb_unbind_interface+0x80/0x278
Apr 12 15:25:09 lite-61 kernel: device_remove+0x78/0x90
Apr 12 15:25:09 lite-61 kernel: device_release_driver_internal+0x1dc/0x238
Apr 12 15:25:09 lite-61 kernel: device_release_driver+0x20/0x38
Apr 12 15:25:09 lite-61 kernel: bus_remove_device+0xd4/0x120
Apr 12 15:25:09 lite-61 kernel: device_del+0x164/0x430
Apr 12 15:25:09 lite-61 kernel: usb_disable_device+0xdc/0x1c0
Apr 12 15:25:09 lite-61 kernel: usb_disconnect+0xe0/0x2b8
Apr 12 15:25:09 lite-61 kernel: hub_event+0x970/0x1540
Apr 12 15:25:09 lite-61 kernel: process_one_work+0x148/0x3b8
Apr 12 15:25:09 lite-61 kernel: worker_thread+0x32c/0x450
Apr 12 15:25:09 lite-61 kernel: kthread+0x11c/0x128
Apr 12 15:25:09 lite-61 kernel: ret_from_fork+0x10/0x20
Apr 12 15:25:09 lite-61 kernel: ---[ end trace 0000000000000000 ]---
The last kernel trace happens even if I don't send any data.
Only plug-in the stick , connect to AP, wait some minutes,
disconnect from AP and plug-out LM842.
Any ideas what might be the cause of this ?
Regards,
Gabriel
>
> I want to use LM842 USB stick on a Raspberry Pi 4 using Raspberry Pi OS
> (64-bit Debian Bookworm with kernel 6.6.20), but the driver get stucked.
>
> The LM842 on Raspi is used as AP.
Based on my testing of rtw88: rtw8822cu, it is non-functional in AP mode.
A small group is working on this driver and recently sent in 5 patches to
help with various problems, mostly managed mode and missing vid-pid
related issues. The location where we are coordinating the effort is:
https://github.com/morrownr/8821cu-20210916/issues/115
Patches are being tested at:
https://github.com/lwfinger/rtw88
If you need a driver that works right now:
https://github.com/morrownr/8821cu-20210916
> Here I show how I created the AP:
> sudo nmcli con add type wifi ifname wlan1 mode ap con-name TEST-AP
> ssid TEST autoconnect false
> sudo nmcli con modify TEST-AP 802-11-wireless.band bg
> sudo nmcli con modify TEST-AP 802-11-wireless.channel 6
> sudo nmcli con modify TEST-AP 802-11-wireless.cloned-mac-address
> 00:12:34:56:78:9a
> sudo nmcli con modify TEST-AP ipv4.method shared ipv4.address 192.168.244.1/24
> sudo nmcli con modify TEST-AP ipv6.method disabled
> sudo nmcli con modify TEST-AP wifi-sec.key-mgmt wpa-psk
> sudo nmcli con modify TEST-AP wifi-sec.psk "mypassword"
> sudo nmcli con up TEST-AP
>
> Here is the kernel log with 2 kernel traces:
> ============plug-in LM842 USB stick ===========
> Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: new high-speed USB device
> number 3 using xhci_hcd
> Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: New USB device found,
> idVendor=0bda, idProduct=c82c, bcdDevice= 0.00
> Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: New USB device strings:
> Mfr=1, Product=2, SerialNumber=3
> Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: Product: 802.11ac NIC
> Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: Manufacturer: Realtek
> Apr 12 14:36:33 lite-61 kernel: usb 1-1.3: SerialNumber: 123456
> Apr 12 14:36:33 lite-61 kernel: usbcore: registered new interface driver btusb
> Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: examining
> hci_ver=0a hci_rev=000c lmp_ver=0a lmp_subver=8822
> Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: rom_version
> status=0 version=3
> Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: loading
> rtl_bt/rtl8822cu_fw.bin
> Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: loading
> rtl_bt/rtl8822cu_config.bin
> Apr 12 14:36:33 lite-61 kernel: Bluetooth: hci1: RTL: cfg_sz 6, total sz 35990
> Apr 12 14:36:33 lite-61 kernel: rtw_8822cu 1-1.3:1.2: WOW Firmware
> version 9.9.4, H2C version 15
> Apr 12 14:36:33 lite-61 kernel: rtw_8822cu 1-1.3:1.2: Firmware version
> 9.9.15, H2C version 15
> Apr 12 14:36:34 lite-61 kernel: Bluetooth: hci1: RTL: fw version 0x0cc6d2e3
> Apr 12 14:36:34 lite-61 kernel: Bluetooth: MGMT ver 1.22
> Apr 12 14:36:34 lite-61 kernel: usbcore: registered new interface
> driver rtw_8822cu
> ===========AP is started, client connect to
> AP===============================================================
> ===========send some test data with iperf3 30-45 min (UDP/TCP test
> data)=====================================
> ===========iperf3 -c 192.168.244.1 -u -i 1 -t 600 -O 5 || iperf3 -c
> 192.168.244.1 -i 1 -t 600 -O 5==========
> Apr 12 14:41:01 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 14:41:01 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
>
> Apr 12 14:57:04 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 14:57:04 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 14:57:15 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 15:07:15 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> =========here it get stalled : the connection is broken=========
> =========AP is not anymore visible==============================
> Apr 12 15:17:19 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 15:17:19 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 15:17:21 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 15:17:24 lite-61 kernel: rtw_8822cu 1-1.3:1.2: error beacon valid
> Apr 12 15:17:24 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
> download drv rsvd page
> =============shut down AP in Raspi(sudo nmcli con down TEST-AP)===========
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: timed out to flush queue 3
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: error beacon valid
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
> download rsvd page
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
> download firmware
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: leave idle state failed
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to send h2c command
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to send h2c command
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to send h2c command
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to leave ips state
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to leave idle state
> Apr 12 15:23:47 lite-61 kernel: ------------[ cut here ]------------
> Apr 12 15:23:47 lite-61 kernel: WARNING: CPU: 0 PID: 513 at
> net/wireless/core.c:1518 cfg80211_netdev_notifier_call+0x3a4/0x558
> [cfg80211]
> Apr 12 15:23:47 lite-61 kernel: Modules linked in: ctr ccm
> nft_reject_ipv4 nf_reject_ipv4 nft_reject nft_ct nft_masq
> nft_chain_nat nf_tables nfnetlink nf_nat_h323 nf_conntrack_h323
> nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_sip
> nf_conntrack_sip nf_nat_irc nf_conntrack_irc nf_nat_ftp
> nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
> rtw88_8822cu rtw88_8822c rtw88_usb rtw88_core mac80211 btusb btrtl
> btintel libarc4 cmac algif_hash aes_arm64 aes_generic algif_skcipher
> af_alg bnep brcmfmac_wcc brcmfmac brcmutil cfg80211 hci_uart btbcm
> bluetooth vc4 v3d gpu_sched drm_shmem_helper snd_soc_hdmi_codec
> raspberrypi_hwmon drm_display_helper ecdh_generic cec ecc
> drm_dma_helper rpivid_hevc(C) bcm2835_v4l2(C) bcm2835_codec(C)
> bcm2835_isp(C) binfmt_misc drm_kms_helper rfkill bcm2835_mmal_vchiq(C)
> v4l2_mem2mem snd_soc_core videobuf2_vmalloc libaes
> videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 snd_compress
> videodev snd_pcm_dmaengine snd_bcm2835(C) snd_pcm videobuf2_common
> vc_sm_cma(C) mc raspberrypi_gpiomem
> Apr 12 15:23:47 lite-61 kernel: snd_timer snd nvmem_rmem
> uio_pdrv_genirq uio drm fuse dm_mod drm_panel_orientation_quirks
> backlight ip_tables x_tables ipv6 i2c_brcmstb
> Apr 12 15:23:47 lite-61 kernel: CPU: 0 PID: 513 Comm: NetworkManager
> Tainted: G C 6.6.20+rpt-rpi-v8 #1 Debian
> 1:6.6.20-1+rpt1
> Apr 12 15:23:47 lite-61 kernel: Hardware name: Raspberry Pi 4 Model B
> Rev 1.5 (DT)
> Apr 12 15:23:47 lite-61 kernel: pstate: 60000005 (nZCv daif -PAN -UAO
> -TCO -DIT -SSBS BTYPE=--)
> Apr 12 15:23:47 lite-61 kernel: pc :
> cfg80211_netdev_notifier_call+0x3a4/0x558 [cfg80211]
> Apr 12 15:23:47 lite-61 kernel: lr :
> cfg80211_netdev_notifier_call+0x230/0x558 [cfg80211]
> Apr 12 15:23:47 lite-61 kernel: sp : ffffffc080ba32e0
> Apr 12 15:23:47 lite-61 kernel: x29: ffffffc080ba32e0 x28:
> ffffffec109ec868 x27: ffffffec10974300
> Apr 12 15:23:47 lite-61 kernel: x26: ffffffec8b22d850 x25:
> ffffffec8ae94008 x24: ffffffc080ba35c0
> Apr 12 15:23:47 lite-61 kernel: x23: 0000000000000002 x22:
> ffffff8036be0000 x21: ffffff8036be03c0
> Apr 12 15:23:47 lite-61 kernel: x20: ffffff8034ca8000 x19:
> ffffff8034ca8950 x18: 0000000000000000
> Apr 12 15:23:47 lite-61 kernel: x17: ffffff93b02ba000 x16:
> ffffffec8a8fd448 x15: 0000000000070014
> Apr 12 15:23:47 lite-61 kernel: x14: ffffffec8b54ef60 x13:
> 0000000000000010 x12: 0000001000001780
> Apr 12 15:23:47 lite-61 kernel: x11: 0000000000000000 x10:
> 0000000000000000 x9 : ffffffec10974530
> Apr 12 15:23:47 lite-61 kernel: x8 : ffffffc080ba32c8 x7 :
> ffffff80051d0000 x6 : 0000000000000000
> Apr 12 15:23:47 lite-61 kernel: x5 : 0000000000000080 x4 :
> 0000000000000000 x3 : 0000000000000000
> Apr 12 15:23:47 lite-61 kernel: x2 : ffffff8004049ec0 x1 :
> ffffff8034ca8950 x0 : 0000000000000000
> Apr 12 15:23:47 lite-61 kernel: Call trace:
> Apr 12 15:23:47 lite-61 kernel:
> cfg80211_netdev_notifier_call+0x3a4/0x558 [cfg80211]
> Apr 12 15:23:47 lite-61 kernel: notifier_call_chain+0x78/0x148
> Apr 12 15:23:47 lite-61 kernel: raw_notifier_call_chain+0x20/0x38
> Apr 12 15:23:47 lite-61 kernel: call_netdevice_notifiers_info+0x60/0xb8
> Apr 12 15:23:47 lite-61 kernel: __dev_notify_flags+0xbc/0xf0
> Apr 12 15:23:47 lite-61 kernel: dev_change_flags+0x5c/0x80
> Apr 12 15:23:47 lite-61 kernel: do_setlink+0x28c/0xef8
> Apr 12 15:23:47 lite-61 kernel: __rtnl_newlink+0x520/0x898
> Apr 12 15:23:47 lite-61 kernel: rtnl_newlink+0x58/0x90
> Apr 12 15:23:47 lite-61 kernel: rtnetlink_rcv_msg+0x134/0x390
> Apr 12 15:23:47 lite-61 kernel: netlink_rcv_skb+0x64/0x138
> Apr 12 15:23:47 lite-61 kernel: rtnetlink_rcv+0x20/0x38
> Apr 12 15:23:47 lite-61 kernel: netlink_unicast+0x2fc/0x370
> Apr 12 15:23:47 lite-61 kernel: netlink_sendmsg+0x1c4/0x448
> Apr 12 15:23:47 lite-61 kernel: __sock_sendmsg+0x64/0xc0
> Apr 12 15:23:47 lite-61 kernel: ____sys_sendmsg+0x260/0x298
> Apr 12 15:23:47 lite-61 kernel: ___sys_sendmsg+0xb4/0x110
> Apr 12 15:23:47 lite-61 kernel: __sys_sendmsg+0x8c/0xf0
> Apr 12 15:23:47 lite-61 kernel: __arm64_sys_sendmsg+0x2c/0x40
> Apr 12 15:23:47 lite-61 kernel: invoke_syscall+0x50/0x128
> Apr 12 15:23:47 lite-61 kernel: el0_svc_common.constprop.0+0x48/0xf0
> Apr 12 15:23:47 lite-61 kernel: do_el0_svc+0x24/0x38
> Apr 12 15:23:47 lite-61 kernel: el0_svc+0x40/0xe8
> Apr 12 15:23:47 lite-61 kernel: el0t_64_sync_handler+0x100/0x130
> Apr 12 15:23:47 lite-61 kernel: el0t_64_sync+0x190/0x198
> Apr 12 15:23:47 lite-61 kernel: ---[ end trace 0000000000000000 ]---
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: error beacon valid
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
> download rsvd page
> Apr 12 15:23:47 lite-61 kernel: rtw_8822cu 1-1.3:1.2: failed to
> download firmware
> Apr 12 15:23:48 lite-61 kernel: warning: `iwconfig' uses wireless
> extensions which will stop working for Wi-Fi 7 hardware; use nl80211
> =============plug-out LM842 USB stick ===========
> Apr 12 15:25:09 lite-61 kernel: usb 1-1.3: USB disconnect, device number 3
> Apr 12 15:25:09 lite-61 kernel: ------------[ cut here ]------------
> Apr 12 15:25:09 lite-61 kernel: Have pending ack frames!
> Apr 12 15:25:09 lite-61 kernel: WARNING: CPU: 0 PID: 3332 at
> net/mac80211/main.c:1510 ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
> Apr 12 15:25:09 lite-61 kernel: Modules linked in: ctr ccm
> nft_reject_ipv4 nf_reject_ipv4 nft_reject nft_ct nft_masq
> nft_chain_nat nf_tables nfnetlink nf_nat_h323 nf_conntrack_h323
> nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_sip
> nf_conntrack_sip nf_nat_irc nf_conntrack_irc nf_nat_ftp
> nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
> rtw88_8822cu rtw88_8822c rtw88_usb rtw88_core mac80211 btusb btrtl
> btintel libarc4 cmac algif_hash aes_arm64 aes_generic algif_skcipher
> af_alg bnep brcmfmac_wcc brcmfmac brcmutil cfg80211 hci_uart btbcm
> bluetooth vc4 v3d gpu_sched drm_shmem_helper snd_soc_hdmi_codec
> raspberrypi_hwmon drm_display_helper ecdh_generic cec ecc
> drm_dma_helper rpivid_hevc(C) bcm2835_v4l2(C) bcm2835_codec(C)
> bcm2835_isp(C) binfmt_misc drm_kms_helper rfkill bcm2835_mmal_vchiq(C)
> v4l2_mem2mem snd_soc_core videobuf2_vmalloc libaes
> videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 snd_compress
> videodev snd_pcm_dmaengine snd_bcm2835(C) snd_pcm videobuf2_common
> vc_sm_cma(C) mc raspberrypi_gpiomem
> Apr 12 15:25:09 lite-61 kernel: snd_timer snd nvmem_rmem
> uio_pdrv_genirq uio drm fuse dm_mod drm_panel_orientation_quirks
> backlight ip_tables x_tables ipv6 i2c_brcmstb
> Apr 12 15:25:09 lite-61 kernel: CPU: 0 PID: 3332 Comm: kworker/0:1
> Tainted: G WC 6.6.20+rpt-rpi-v8 #1 Debian
> 1:6.6.20-1+rpt1
> Apr 12 15:25:09 lite-61 kernel: Hardware name: Raspberry Pi 4 Model B
> Rev 1.5 (DT)
> Apr 12 15:25:09 lite-61 kernel: Workqueue: usb_hub_wq hub_event
> Apr 12 15:25:09 lite-61 kernel: pstate: 60000005 (nZCv daif -PAN -UAO
> -TCO -DIT -SSBS BTYPE=--)
> Apr 12 15:25:09 lite-61 kernel: pc :
> ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
> Apr 12 15:25:09 lite-61 kernel: lr :
> ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
> Apr 12 15:25:09 lite-61 kernel: sp : ffffffc0872bb910
> Apr 12 15:25:09 lite-61 kernel: x29: ffffffc0872bb910 x28:
> 0000000000000002 x27: ffffff80027fe000
> Apr 12 15:25:09 lite-61 kernel: x26: ffffff800315f000 x25:
> ffffff800315f0a8 x24: ffffff8036be1fa0
> Apr 12 15:25:09 lite-61 kernel: x23: 0000000000000000 x22:
> 000000007fffffff x21: ffffffec10b2e480
> Apr 12 15:25:09 lite-61 kernel: x20: 0000000000000000 x19:
> ffffff80047d5f00 x18: ffffffc080d2bc78
> Apr 12 15:25:09 lite-61 kernel: x17: ffffffec8b382740 x16:
> ffffffec89c8efa0 x15: 0000000000000040
> Apr 12 15:25:09 lite-61 kernel: x14: ffffff8036be1fa0 x13:
> 2173656d61726620 x12: 6b636120676e6964
> Apr 12 15:25:09 lite-61 kernel: x11: fffffffffffe0000 x10:
> ffffffec8b2a3708 x9 : ffffffec89d0946c
> Apr 12 15:25:09 lite-61 kernel: x8 : 00000000ffffefff x7 :
> ffffffec8b2a3708 x6 : 80000000fffff000
> Apr 12 15:25:09 lite-61 kernel: x5 : ffffff803b150d48 x4 :
> 0000000000000000 x3 : 0000000000000027
> Apr 12 15:25:09 lite-61 kernel: x2 : 0000000000000000 x1 :
> 0000000000000000 x0 : ffffff8002f8dc40
> Apr 12 15:25:09 lite-61 kernel: Call trace:
> Apr 12 15:25:09 lite-61 kernel: ieee80211_free_ack_frame+0x5c/0x88 [mac80211]
> Apr 12 15:25:09 lite-61 kernel: idr_for_each+0x6c/0xf0
> Apr 12 15:25:09 lite-61 kernel: ieee80211_free_hw+0x48/0xc0 [mac80211]
> Apr 12 15:25:09 lite-61 kernel: rtw_usb_disconnect+0xc4/0x108 [rtw88_usb]
> Apr 12 15:25:09 lite-61 kernel: usb_unbind_interface+0x80/0x278
> Apr 12 15:25:09 lite-61 kernel: device_remove+0x78/0x90
> Apr 12 15:25:09 lite-61 kernel: device_release_driver_internal+0x1dc/0x238
> Apr 12 15:25:09 lite-61 kernel: device_release_driver+0x20/0x38
> Apr 12 15:25:09 lite-61 kernel: bus_remove_device+0xd4/0x120
> Apr 12 15:25:09 lite-61 kernel: device_del+0x164/0x430
> Apr 12 15:25:09 lite-61 kernel: usb_disable_device+0xdc/0x1c0
> Apr 12 15:25:09 lite-61 kernel: usb_disconnect+0xe0/0x2b8
> Apr 12 15:25:09 lite-61 kernel: hub_event+0x970/0x1540
> Apr 12 15:25:09 lite-61 kernel: process_one_work+0x148/0x3b8
> Apr 12 15:25:09 lite-61 kernel: worker_thread+0x32c/0x450
> Apr 12 15:25:09 lite-61 kernel: kthread+0x11c/0x128
> Apr 12 15:25:09 lite-61 kernel: ret_from_fork+0x10/0x20
> Apr 12 15:25:09 lite-61 kernel: ---[ end trace 0000000000000000 ]---
>
> The last kernel trace happens even if I don't send any data.
> Only plug-in the stick , connect to AP, wait some minutes,
> disconnect from AP and plug-out LM842.
>
> Any ideas what might be the cause of this ?
>
> Regards,
> Gabriel
>
Regards,
Nick
Nick Morrow <[email protected]> wrote:
> > I want to use LM842 USB stick on a Raspberry Pi 4 using Raspberry Pi OS
> > (64-bit Debian Bookworm with kernel 6.6.20), but the driver get stucked.
> >
> > The LM842 on Raspi is used as AP.
>
> Based on my testing of rtw88: rtw8822cu, it is non-functional in AP mode.
In discussion [1], Viacheslav reported 8821CU works. That might be a reference
for digging problem.
[1] https://lore.kernel.org/linux-wireless/[email protected]/
I am a little bit confused.
My LM842 USB stick uses a RTL8822CU chipset(idVendor=0bda, idProduct=c82c)
The repo https://github.com/morrownr/8821cu-20210916
allow to use for idVendor=0bda, idProduct=c82c both RTL8821C or RTL8822C driver.
Should I use then CONFIG_RTL8822C for my case ?
To be sure, does anyone tested this driver in AP mode for 8822cu ?
On Mon, Apr 15, 2024 at 3:19 AM Ping-Ke Shih <[email protected]> wrote:
>
> Nick Morrow <[email protected]> wrote:
>
> > > I want to use LM842 USB stick on a Raspberry Pi 4 using Raspberry Pi OS
> > > (64-bit Debian Bookworm with kernel 6.6.20), but the driver get stucked.
> > >
> > > The LM842 on Raspi is used as AP.
> >
> > Based on my testing of rtw88: rtw8822cu, it is non-functional in AP mode.
>
> In discussion [1], Viacheslav reported 8821CU works. That might be a reference
> for digging problem.
>
> [1] https://lore.kernel.org/linux-wireless/[email protected]/
>
On 4/15/24 3:53 AM, Gabriel Tisan wrote:
> I am a little bit confused.
>
> My LM842 USB stick uses a RTL8822CU chipset(idVendor=0bda, idProduct=c82c)
>
> The repo https://github.com/morrownr/8821cu-20210916
> allow to use for idVendor=0bda, idProduct=c82c both RTL8821C or RTL8822C driver.
>
> Should I use then CONFIG_RTL8822C for my case ?
No, that would not work. The vendor drivers tend to have the USB device
identifier section for every device in the family and pick then with the
appropriate CONFIG command, but that does not mean that the rest of the driver
would work with that CONFIG_RTL8822C.
>
> To be sure, does anyone tested this driver in AP mode for 8822cu ?
I have no idea if AP mode works for the rtw8822bu. The vendor driver for this
device is available at https://github.com/RinCat/RTL88x2BU-Linux-Driver or
https://github.com/morrownr/88x2bu-20210702.
There is a problem with the wireless-next kernel and my rtw88 github repo in
that device 0bda:c82c is listed as active for both rtw8822cu and rtw8821cu -
certainly a mistake.
Larry
> > To be sure, does anyone tested this driver in AP mode for 8822cu ?
>
> I have no idea if AP mode works for the rtw8822bu. The vendor driver for this
> device is available at https://github.com/RinCat/RTL88x2BU-Linux-Driver or
> https://github.com/morrownr/88x2bu-20210702.
>
> There is a problem with the wireless-next kernel and my rtw88 github repo in
> that device 0bda:c82c is listed as active for both rtw8822cu and rtw8821cu -
> certainly a mistake.
The problem is also in mainline, was introduced by Nick Morrow with this commit:
wifi: rtw88: Add missing VID/PIDs for 8811CU and 8821CU
Maybe he has a reason.
He told me to check https://github.com/morrownr/8821cu-20210916
even if I use a RTL8822CU chipset.
I checked https://github.com/lwfinger/rtw88 regarding AP mode for rtw8822cu
and I get the same problems like in the inline driver for kernel 6.6