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#1 2022-06-21 09:34:56

r0b0t
Member
From: /tmp
Registered: 2009-05-24
Posts: 501

What happened with r8188eu ?

I'v been using my external wifi :

Bus 001 Device 010: ID 2357:010c TP-Link TL-WN722N v2/v3 [Realtek RTL8188EUS]
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x2357 TP-Link
  idProduct          0x010c TL-WN722N v2/v3 [Realtek RTL8188EUS]
  bcdDevice            0.00
  iManufacturer           1 Realtek
  iProduct                2 802.11n NIC

for years now without issues, I did a kernel upgrade recently to 5.18.5-arch1-1 and suddenly the wifi interface wasn't coming up at all...

This is the related error :

Jun 21 11:14:23 ws kernel: usb 1-10: new high-speed USB device number 10 using xhci_hcd
Jun 21 11:14:24 ws kernel: usb 1-10: New USB device found, idVendor=2357, idProduct=010c, bcdDevice= 0.00
Jun 21 11:14:24 ws kernel: usb 1-10: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jun 21 11:14:24 ws kernel: usb 1-10: Product: 802.11n NIC
Jun 21 11:14:24 ws kernel: usb 1-10: Manufacturer: Realtek
Jun 21 11:14:24 ws kernel: usb 1-10: SerialNumber: 00E04C0001
Jun 21 11:14:24 ws kernel: Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
Jun 21 11:14:24 ws kernel: EEPROM ID = 0x8129
Jun 21 11:14:24 ws kernel: r8188eu 1-10:1.0: _rtw_init_xmit_priv failed
Jun 21 11:14:24 ws kernel: usb 1-10: reset high-speed USB device number 10 using xhci_hcd

I installed 8188eu-dkms-git afterwards and it started working again...
Was it kicked out of the kernel or what?
In all these years this kind of problem never happened with any driver, should we have security concerns by installing this driver?
thanks.

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#2 2022-06-21 12:27:23

dimich
Member
From: Kharkiv, Ukraine
Registered: 2009-11-03
Posts: 98

Re: What happened with r8188eu ?

Looks like the issue is introduced by this commit.
Note the driver is in staging dir.

UPD: Sorry, not introduced but attempt to fix.

Last edited by dimich (2022-06-21 12:32:22)

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#3 2022-06-26 15:06:06

cantabile
Member
Registered: 2010-06-29
Posts: 22

Re: What happened with r8188eu ?

It wasn't kicked out of the kernel, but I heard it might be at some point, because it's ugly and because IIRC it uses the deprecated "wireless extensions".

Allegedly someone (or a group) is working on cleaning up a newer version of the driver (https://github.com/lwfinger/rtl8188eu/tree/v5.2.2.4) to replace the one in the kernel.

Who knows when either of these things will happen.

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