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Re: rtl8xxxu: Should it support RTL8188EU?

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On 03/10/2022 16:12, Jes Sorensen wrote:
> On 10/1/22 17:42, Bitterblue Smith wrote:
>> Considering there is a driver for RTL8188EU already in staging,
>> which people have been whittling down, should I put any effort
>> into adding support to rtl8xxxu?
>>
>> It's actually mostly working already [0], but rtl8xxxu doesn't
>> have AP mode, adhoc mode, power saving, etc so it wouldn't be
>> necessarily better than the driver in staging.
>>
>> [0] https://git.kernel.org/pub/scm/linux/kernel/git/jes/linux.git/log/drivers/net/wireless/realtek/rtl8xxxu?h=rtl8xxxu-8188eu
> 
> The staging driver is based on the vendor driver which is rather
> dreadful. Given the similarity of the chips, it feels really silly to
> have a second driver for just one chip.
> 
> I see no reason to abandon 8188eu support in rtl8xxxu, but given my
> total lack of time, I am also not able to invest in it.
> 
> Cheers,
> Jes
> 

So now I actually tested r8188eu and it's so bad. Why are people
spending so much time cleaning up a driver that doesn't work well?
With the default module parameters it had 35% packet loss with the
router 3 meters away in the same room. With rtw_power_mgnt=0 the
packet loss is gone but the speed is still disappointing: less than
50 megabits/second download, 65-70 upload, and it's unsteady.

The v5.2.2.4 driver from Larry Finger's repo works much better:
no packet loss and a steady 95 and 85 megabits/second in the same
conditions.

I'll get started then.



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