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Subject: Re: RTL8188S WLAN Adapter failure To: Bitterblue Smith , Jes.Sorensen@gmail.com, Ping-Ke Shih , linux-wireless , Christian Lamparter References: <015e5657-d21e-4214-9854-975c32b1990f@gmail.com> <34e345ed-a114-494a-b3f7-72dfab6b628a@gmx.de> Content-Language: en-US From: Helge Deller Autocrypt: addr=deller@gmx.de; keydata= xsFNBF3Ia3MBEAD3nmWzMgQByYAWnb9cNqspnkb2GLVKzhoH2QD4eRpyDLA/3smlClbeKkWT HLnjgkbPFDmcmCz5V0Wv1mKYRClAHPCIBIJgyICqqUZo2qGmKstUx3pFAiztlXBANpRECgwJ r+8w6mkccOM9GhoPU0vMaD/UVJcJQzvrxVHO8EHS36aUkjKd6cOpdVbCt3qx8cEhCmaFEO6u CL+k5AZQoABbFQEBocZE1/lSYzaHkcHrjn4cQjc3CffXnUVYwlo8EYOtAHgMDC39s9a7S90L 69l6G73lYBD/Br5lnDPlG6dKfGFZZpQ1h8/x+Qz366Ojfq9MuuRJg7ZQpe6foiOtqwKym/zV dVvSdOOc5sHSpfwu5+BVAAyBd6hw4NddlAQUjHSRs3zJ9OfrEx2d3mIfXZ7+pMhZ7qX0Axlq Lq+B5cfLpzkPAgKn11tfXFxP+hcPHIts0bnDz4EEp+HraW+oRCH2m57Y9zhcJTOJaLw4YpTY GRUlF076vZ2Hz/xMEvIJddRGId7UXZgH9a32NDf+BUjWEZvFt1wFSW1r7zb7oGCwZMy2LI/G aHQv/N0NeFMd28z+deyxd0k1CGefHJuJcOJDVtcE1rGQ43aDhWSpXvXKDj42vFD2We6uIo9D 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sz3O+IUedNlauV+Ow0lVRJjaAmNqzjbCuSRE2FpCesH3rv67yeyzE7C3nWjT9uv5xgShf2Nal YKVSU1zI9j/6+2KFw+SJdAq0Y+D2XyO6Xc5neCbrdjhWuFf9kLJ71JN6YLLljWws4CiWEH+UN BTKotbYFhtBjn9Zo45xrjQ110pnCVcv7txfNirBuLSPbHZmI5r8NgCCET2x3Q5GYDDxeSP/9r XJ9A8OGGlSr5OjSJCYIoVm8vXkyjOmqxz0u6R+rZvwOHInhELur1hmVvR/66/5k5ohTGveDYq paFUD0eQvMyEfscSCcuGy97HKx1NcgejQO+MjwzTE0dJHv3icodIv7ManFKDdEKjm273TLiTj qhpXG5W9h8uK1cyXZGwlL8vtUK5Q+J5fCX1SZqqUUDNBjXs16NQ619aoiaPNUUp7GvvM5w3aO N4Tfd49eYDByErLWNlRa0TMaraOcXrvb7zybm3k/z9TsWftrkovxCANHXWhTWGZCkij02K7XX 9kOjpEk5V5CfBkmKRWc2ZXhD9DyDT11oWYfB7GSsFJVtIavW9cX9HPzah2O0n5uccvze1xm On 8/11/25 14:56, Bitterblue Smith wrote: > On 11/08/2025 14:46, Helge Deller wrote: >> On 8/11/25 00:12, Bitterblue Smith wrote: >>> On 10/08/2025 23:36, Helge Deller wrote: >>>> The USB dongle which came with my DreamBox DM7020HD years ago seems t= o fail now. >>>> Any idea or suggestion what I should try? >>>> >>>> [427792.562049] usb 3-7: new high-speed USB device number 56 using xh= ci_hcd >>>> [427792.689358] usb 3-7: New USB device found, idVendor=3D07b8, idPro= duct=3D8188, bcdDevice=3D 2.00 >>>> [427792.689376] usb 3-7: New USB device strings: Mfr=3D1, Product=3D2= , SerialNumber=3D3 >>>> [427792.689381] usb 3-7: Product: RTL8188S WLAN Adapter >>>> [427792.689385] usb 3-7: Manufacturer: Manufacturer Realtek >>>> [427792.689388] usb 3-7: SerialNumber: 00e04c000001 >>>> [427792.695145] usb 3-7: This Realtek USB WiFi dongle (0x07b8:0x8188)= is untested! >>>> [427792.695151] usb 3-7: Please report results to Jes.Sorensen@gmail.= com >>>> [427792.934142] usb 3-7: Dumping efuse for RTL8188CU (0x200 bytes): >>>> [427792.934151] 00000000: 29 81 00 00 a9 16 00 00 b8 07 88 81 90 85 6= 2 9c=C2=A0 ).............b. >>>> [427792.934155] 00000010: 06 00 ec f0 0e 16 44 3f 17 03 4d 61 6e 75 6= 6 61=C2=A0 ......D?..Manufa >>>> [427792.934157] 00000020: 63 74 75 72 65 72 20 52 65 61 6c 74 65 6b 2= 0 18=C2=A0 cturer Realtek . >>>> [427792.934159] 00000030: 03 52 54 4c 38 31 38 38 53 20 57 4c 41 4e 2= 0 41=C2=A0 .RTL8188S WLAN A >>>> [427792.934160] 00000040: 64 61 70 74 65 72 20 00 00 00 00 00 00 00 0= 0 00=C2=A0 dapter ......... >>>> [427792.934162] 00000050: 06 02 00 00 00 24 24 24 00 00 00 26 26 26 0= 0 00=C2=A0 .....$$$...&&&.. >>>> [427792.934163] 00000060: 00 00 00 00 00 00 00 00 12 00 00 09 0d 00 0= 0 00=C2=A0 ................ >>>> [427792.934164] 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0= 0 00=C2=A0 ................ >>>> [427792.934166] 00000080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934167] 00000090: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934168] 000000a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934170] 000000b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934171] 000000c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934172] 000000d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934174] 000000e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934175] 000000f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934176] 00000100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934178] 00000110: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934179] 00000120: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934180] 00000130: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934182] 00000140: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934183] 00000150: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934184] 00000160: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934186] 00000170: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934187] 00000180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934188] 00000190: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934190] 000001a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934191] 000001b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934192] 000001c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934193] 000001d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934195] 000001e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934196] 000001f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff f= f ff=C2=A0 ................ >>>> [427792.934198] usb 3-7: RTL8188CU rev A (TSMC) romver 0, 1T1R, TX qu= eues 3, WiFi=3D1, BT=3D0, GPS=3D0, HI PA=3D0 >>>> [427792.934203] usb 3-7: RTL8188CU MAC: 44:3f:17:03:4d:61 >>>> [427792.934206] usb 3-7: rtl8xxxu: Loading firmware rtlwifi/rtl8192cu= fw_TMSC.bin >>>> [427792.938371] usb 3-7: Firmware revision 88.2 (signature 0x88c1) >>>> [427792.939417] rtl8192cu_power_on: Enabling LDOV12D (24) >>>> [427793.115145] rtl8192cu_power_on: FSMCO_MAC_ENABLE poll failed >>>> [427793.115156] usb 3-7: rtl8xxxu_init_device: Failed power on >>>> [427793.116003] rtl8xxxu 3-7:1.0: probe with driver rtl8xxxu failed w= ith error -16 >>>> >>> >>> Your dongle has the RTL8188SU chip inside. rtl8xxxu and rtl8192cu >>> are not the right drivers. >>> >>> The right driver is r8712u, but it was removed in kernel 6.13. >> >> Ah, ok. >> >>> You can use kernel 6.12. Or you can compile r8712u for your current >>> kernel. Maybe r8712u could even be accepted back in the kernel if >>> you convert it to use mac80211/cfg80211. >>> https://lore.kernel.org/linux-staging/20241020144933.10956-1-philipp.g= .hortmann@gmail.com/ >> >> According to that commit message, a replacement with MAC80211 support >> is available at https://github.com/chunkeey/rtl8192su >> But development on it seems to have stopped some years ago. >> Is there any specific reason for this? >=20 > I think the people working on it ran into some problems with the > driver/firmware and also didn't have time for it anymore: >=20 > https://lore.kernel.org/linux-wireless/3717687.FpcDfXaOEr@debian64/ Interesting. Thanks for the link! >> I have no clue on wireless development, so if I'm willing to test this >> driver and provide feedback, would someone be interested and may help t= o bring >> it upstream? Or doesn't it make sense to invest the time in that? >> >> Helge >=20 > The work has to be done by someone who has the hardware. That makes > you the best candidate for the job. Yes, sure, *if* I would have at least *some* knowledge about WIFI. Instead I'm happy to sponsor this USB dongle to someone who is knowledgeab= le and who is willing to spend some time on it (again). Just let me know. Helge