linux-firmware/rtlwifi
Reto Schneider 2ea86675db
rtlwifi: v88.2 firmware files for RTL8192CU
The vendor driver rtl8188C_8192C_usb_linux_v4.0.1_6911.20130308 includes
new firmware files. These were extracted from data statements in that
driver to form these files.

Before this update, with version 80 of the firmware, the USB interface
of the RTL8192CU WLAN controller often locked itself up:
 usb 1-2: device descriptor read/64, error -110
 usb 1-2: device not accepting address 4, error -110
 usb 1-2: device not accepting address 5, error -110
 usb usb1-port2: unable to enumerate USB device
 usb 2-2: device descriptor read/64, error -110
 usb 2-2: device descriptor read/64, error -110

On ARMv5 based GARDENA smart gateways running Linux 4.19.78, this can
be reliably reproduced by rebooting (warm) the gateway multiple times
(max. 50 attempts needed).
Unlike users having this issues on a USB Wi-Fi dongle, resetting of the
chip by replugging is not an option on this gateway due to the lack of
any power cut functionality. Therefore, a (cold) reboot of the whole
gateway is needed.

Updating the firmware of the RTL8192CU WLAN controller from version
v80.0 to v88.2 (as per output of rtl8xxxu) resolves this issue.
The problem did no show up anymore for 1000 restarts.

Please note:
 - Only rtl8192cufw_TMSC.bin tested (mainly on rtl8xxxu)
 - rtl8192cu seems to work as well as before, but I can not rule out
   that this new firmware version brings unwanted changes.
   The Realtek drivers containing v88.2 of the firmware
   (v4.0.1_6911.20130308 to v4.0.9_25039.20171107) have some changes
   compared to the version v3.4.2_3727.20120404, for which I do not know
   if those should be reflected in rtl8192cu.

Unrelated of the initially described USB problem, another issue still
remains after updating the firmware: Using the rtl8192cu driver,
scanning for available SSIDs yields no more results after a few hundred
scans (iw wlan0 scan). rtl8xxxu does not suffer from this problem.

Signed-off-by: Reto Schneider <code@reto-schneider.ch>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Chris Chiu <chiu@endlessos.org>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>
2020-11-13 10:29:32 -05:00
..
rtl8188efw.bin
rtl8188eufw.bin
rtl8192cfw.bin
rtl8192cfwU_B.bin
rtl8192cfwU.bin
rtl8192cufw_A.bin rtlwifi: v88.2 firmware files for RTL8192CU 2020-11-13 10:29:32 -05:00
rtl8192cufw_B.bin rtlwifi: v88.2 firmware files for RTL8192CU 2020-11-13 10:29:32 -05:00
rtl8192cufw_TMSC.bin rtlwifi: v88.2 firmware files for RTL8192CU 2020-11-13 10:29:32 -05:00
rtl8192cufw.bin
rtl8192defw.bin
rtl8192eefw.bin
rtl8192eu_ap_wowlan.bin
rtl8192eu_nic.bin
rtl8192eu_wowlan.bin
rtl8192sefw.bin
rtl8712u.bin
rtl8723aufw_A.bin
rtl8723aufw_B_NoBT.bin
rtl8723aufw_B.bin
rtl8723befw_36.bin
rtl8723befw.bin
rtl8723bs_ap_wowlan.bin
rtl8723bs_bt.bin
rtl8723bs_nic.bin
rtl8723bs_wowlan.bin
rtl8723bu_ap_wowlan.bin
rtl8723bu_nic.bin
rtl8723bu_wowlan.bin
rtl8723defw.bin rtlwifi: rtl8723de: Add firmware for new driver/device 2018-01-03 15:32:34 -05:00
rtl8723fw_B.bin
rtl8723fw.bin
rtl8812aefw_wowlan.bin rtlwifi: rtl8821ae: Add firmware for the RTL8812AE variant. 2019-10-08 07:17:38 -04:00
rtl8812aefw.bin rtlwifi: rtl8821ae: Add firmware for the RTL8812AE variant. 2019-10-08 07:17:38 -04:00
rtl8821aefw_29.bin
rtl8821aefw_wowlan.bin
rtl8821aefw.bin
rtl8822befw.bin