0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
r8712u: module is from the staging directory, the quality is unknown, you have been warned.
r8712u: Staging version
r8712u: register rtl8712_netdev_ops to netdev_ops
usb 2-1: r8712u: USB_SPEED_HIGH with 4 endpoints
usb 2-1: r8712u: Boot from EFUSE: Autoload OK
usb 2-1: r8712u: CustomerID = 0x0000
usb 2-1: r8712u: MAC Address from efuse = 00:e0:4c:87:00:00
usb 2-1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
usbcore: registered new interface driver r8712u
r8712u 2-1:1.0 wlp0s4f1u1: renamed from wlan0
systemd-udevd[394]: renamed network interface wlan0 to wlp0s4f1u1
------------[ cut here ]------------
WARNING: CPU: 3 PID: 679 at drivers/usb/core/urb.c:339 usb_submit_urb+0x11d/0x5f0()
URB ffff8800cb25eb40 submitted while active
Modules linked in: r8712u(C)
CPU: 3 PID: 679 Comm: NetworkManager Tainted: G C 3.17.0-0.rc6.git2.1.fc22.x86_64 #1
Call Trace:
[<ffffffff8173c341>] dump_stack+0x45/0x56
[<ffffffff81096eed>] warn_slowpath_common+0x7d/0xa0
[<ffffffff81096f6c>] warn_slowpath_fmt+0x5c/0x80
[<ffffffff817414f6>] ? __down_interruptible+0xa6/0xf0
[<ffffffff8151f51d>] usb_submit_urb+0x11d/0x5f0
[<ffffffffa047f7f5>] r8712_usb_write_mem+0xa5/0xc0 [r8712u]
[<ffffffffa04801ba>] r8712_write_mem+0x1a/0x20 [r8712u]
[<ffffffffa047de64>] rtl8712_hal_init+0x274/0x7e0 [r8712u]
[<ffffffffa047e510>] rtl871x_hal_init+0x40/0x60 [r8712u]
[<ffffffffa048f91e>] netdev_open+0xfe/0x260 [r8712u]
[<ffffffff8163140e>] __dev_open+0xce/0x150
[<ffffffff8163173d>] __dev_change_flags+0x9d/0x160
[<ffffffff81631829>] dev_change_flags+0x29/0x70
[<ffffffff8163f2b9>] do_setlink+0x409/0xb80
[<ffffffff812027ab>] ? mem_cgroup_bad_page_check+0x1b/0x30
[<ffffffff810cf673>] ? find_busiest_group+0x143/0x910
[<ffffffff813aa7e2>] ? nla_parse+0x32/0x120
[<ffffffff81641a4d>] rtnl_newlink+0x61d/0x780
[<ffffffff8130c748>] ? security_capable+0x18/0x20
[<ffffffff8109f09b>] ? ns_capable+0x2b/0x60
[<ffffffff8163dea1>] rtnetlink_rcv_msg+0xa1/0x260
[<ffffffff811f1111>] ? __kmalloc_node_track_caller+0x191/0x2e0
[<ffffffff81394fd6>] ? rhashtable_lookup_compare+0x36/0x70
[<ffffffff8163de00>] ? rtnetlink_rcv+0x30/0x30
[<ffffffff8165fea9>] netlink_rcv_skb+0xa9/0xd0
[<ffffffff8163ddf8>] rtnetlink_rcv+0x28/0x30
[<ffffffff8165f4ca>] netlink_unicast+0x12a/0x1a0
[<ffffffff8165f891>] netlink_sendmsg+0x351/0x7b0
[<ffffffff8161344e>] sock_sendmsg+0x9e/0xe0
[<ffffffff8161311e>] ? move_addr_to_kernel.part.20+0x1e/0x70
[<ffffffff81614021>] ? move_addr_to_kernel+0x21/0x30
[<ffffffff816138b8>] ___sys_sendmsg+0x3c8/0x3e0
[<ffffffff8122a685>] ? __fget_light+0x25/0x70
[<ffffffff81613a4d>] ? SYSC_sendto+0x17d/0x1c0
[<ffffffff8122a685>] ? __fget_light+0x25/0x70
[<ffffffff816147d1>] __sys_sendmsg+0x51/0x90
[<ffffffff81614822>] SyS_sendmsg+0x12/0x20
[<ffffffff817434a9>] system_call_fastpath+0x16/0x1b
---[ end trace c3332f64cf535dba ]---
$ dmesg
...
[ 1.462812] usb 1-4: new high-speed USB device number 4 using ehci-pci
[ 1.579359] usb 1-4: New USB device found, idVendor=0bda, idProduct=8171
[ 1.579360] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.579361] usb 1-4: Product: RTL8188S WLAN Adapter
[ 1.579362] usb 1-4: Manufacturer: Manufacturer Realtek
[ 1.579363] usb 1-4: SerialNumber: 00e04c000001
[ 2.026431] usb 2-3: Product: 802.11 n WLAN
[ 21.295330] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 21.296110] r8712u: Staging version
[ 21.296288] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 21.296583] usb 1-4: r8712u: USB_SPEED_HIGH with 4 endpoints
[ 21.297469] usb 1-4: r8712u: Boot from EFUSE: Autoload OK
[ 21.863363] usb 1-4: r8712u: CustomerID = 0x0000
[ 21.864014] usb 1-4: r8712u: MAC Address from efuse = 00:11:22:33:44:55
[ 21.864622] usb 1-4: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 21.865330] usbcore: registered new interface driver r8712u
[ 21.980454] r8712u 1-4:1.0 wlp0s2f1u4: renamed from wlan0
[ 21.997197] systemd-udevd[452]: renamed network interface wlan0 to wlp0s2f1u4
[ 28.252740] r8712u 1-4:1.0 wlp0s2f1u4: 1 RCR=0x153f00e
[ 28.253856] r8712u 1-4:1.0 wlp0s2f1u4: 2 RCR=0x553f00e
[ 28.359221] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 28.664239] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 28.978248] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 56.734442] IPv6: ADDRCONF(NETDEV_CHANGE): wlp0s2f1u4: link becomes ready
...
$ nmcli device
DEVICE TYPE STATE CONNECTION
wlp0s2f1u4 wifi connected ap
$ iwconfig wlp0s2f1u4
wlp0s2f1u4 IEEE 802.11bgn ESSID:"ap" Nickname:"rtl_wifi"
Mode:Managed Frequency:2.457 GHz Access Point: 00:11:33:55:77:99
Bit Rate:150 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=98/100 Signal level=48/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
$ systemctl suspend
$ dmesg
...
[ 6218.212944] IPv6: ADDRCONF(NETDEV_CHANGE): wlp0s2f1u4: link becomes ready
[ 6218.426509] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 6219.437930] r8712u 1-4:1.0 wlp0s2f1u4: Suspending...
[ 6219.437932] r8712u 1-4:1.0 wlp0s2f1u4: Unable to suspend
[ 6222.063982] r8712u 1-4:1.0 wlp0s2f1u4: Resuming...
[ 6222.063984] r8712u 1-4:1.0 wlp0s2f1u4: Unable to resume
[ 6222.380137] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 6222.703179] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 6222.718697] r8712u 1-4:1.0 wlp0s2f1u4: In r8711_wx_set_scan: bDriverStopped=1
[ 6246.403973] r8712u 1-4:1.0 wlp0s2f1u4: In r8711_wx_set_scan: bDriverStopped=1
[ 6269.423294] r8712u 1-4:1.0 wlp0s2f1u4: In r8711_wx_set_scan: bDriverStopped=1
[ 6302.435194] r8712u 1-4:1.0 wlp0s2f1u4: In r8711_wx_set_scan: bDriverStopped=1
...
$ nmcli radio wifi
enabled
$ nmcli device
DEVICE TYPE STATE CONNECTION
wlp0s2f1u4 wifi disconnected --
$ iwconfig wlp0s2f1u4
wlp0s2f1u4 unassociated Nickname:"rtl_wifi"
Mode:Managed Access Point: Not-Associated Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
$ nmcli device connect wlp0s2f1u4
Error: Device activation failed: The device has no connections available.
# modprobe -rv r8712u && modprobe -v r8712u
rmmod r8712u
insmod /lib/modules/3.17.0-1.fc21.x86_64/kernel/drivers/staging/rtl8712/r8712u.ko.xz
$ dmesg
...
[ 6809.514301] usbcore: deregistering interface driver r8712u
[ 6809.858958] usb 1-4: reset high-speed USB device number 4 using ehci-pci
[ 6809.992458] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 6809.993163] r8712u: Staging version
[ 6809.993182] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 6809.993187] usb 1-4: r8712u: USB_SPEED_HIGH with 4 endpoints
[ 6809.994152] usb 1-4: r8712u: Boot from EFUSE: Autoload OK
[ 6810.373993] usb 1-4: r8712u: CustomerID = 0x0000
[ 6810.374007] usb 1-4: r8712u: MAC Address from efuse = 00:11:22:33:44:55
[ 6810.374015] usb 1-4: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 6810.374824] usbcore: registered new interface driver r8712u
[ 6810.380437] r8712u 1-4:1.0 wlp0s2f1u4: renamed from wlan0
[ 6810.395219] systemd-udevd[3533]: renamed network interface wlan0 to wlp0s2f1u4
[ 6811.110320] r8712u 1-4:1.0 wlp0s2f1u4: 1 RCR=0x153f00e
[ 6811.110849] r8712u 1-4:1.0 wlp0s2f1u4: 2 RCR=0x553f00e
[ 6811.215147] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 6811.520143] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 6811.827149] IPv6: ADDRCONF(NETDEV_UP): wlp0s2f1u4: link is not ready
[ 6832.218387] IPv6: ADDRCONF(NETDEV_CHANGE): wlp0s2f1u4: link becomes ready
...
$ nmcli device
DEVICE TYPE STATE CONNECTION
wlp0s2f1u4 wifi connected sunlight
$ iwconfig wlp0s2f1u4
wlp0s2f1u4 IEEE 802.11bgn ESSID:"ap" Nickname:"rtl_wifi"
Mode:Managed Frequency:2.457 GHz Access Point: 00:11:33:55:77:99
Bit Rate:150 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=90/100 Signal level=47/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
poma