Re: Raspberry Pi Zero W almost useless

[Nat Sloss <nathanialsloss%yahoo.com.au@localhost>]

On Fri, 9 Feb 2024 06:05:46 Ramiro Aceves wrote:
> El 8/2/24 a las 16:48, Nat Sloss escribió:
> > Hi,
> > 
> > There's a little more required to add support for the FTV variant judging
> > by changes made to openbsd's if_urtwn.c.
> > 
> > There's new firware that needs to be uploaded to the device.  And new
> > power on and rssi functions (It seems judging by the changes they've
> > made it some what is similar to the 8188EUS).
> > 
> > I'm going to see if I can get one of these adaptors on ebay.
> > 
> > I't will be awhile though before I try to get it working.
> > 
> > This is best done on the new wifi stack, so I doubt it will get
> > backported to -10.
> > 
> > In the meantime if you search for an 8192eu variant that will work with
> > -10 and -9.
> > 
> > Best regards,
> > 
> > Nat
> 
> Hello Nat,
> 
> Thanks for your great explanation, I understand. I then abandon the
> tests with the 8188FTV and wait for your improvements. They will be
> appreciated. I cannot fix anything, the driver world seems to be a hell!
> :-)
> 
> I have just received today from Amazon a TL-WN725N USB WIFI adaptor and
> it just work in the raspberry Pi Zero W:
> 
> [     1.710793] urtwn0 at uhub0 port 1
> [     1.710793] urtwn0: Realtek (0x0bda) 802.11n NIC (0x8179), rev
> 2.00/0.00, addr 2
> [     1.770890] urtwn0: MAC/BB RTL8188EU, RF 6052 1T1R, address
> e4:fa:c4:52:ac:4c
> [     1.770890] urtwn0: 1 rx pipe, 2 tx pipes
> 
> 
> 
> netbsd-raspa# ifconfig
> urtwn0: flags=0x8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> 	ssid MiFibra-3422 nwkey 65536:"",0xc81111000336c6e2b40b047cd2f5ef44,"",""
> 	powersave off
> 	bssid 60:8d:26:32:34:24 chan 1
> 	address: e4:fa:c4:52:ac:4c
> 	media: IEEE802.11 autoselect (OFDM54 mode 11g)
> 	status: active
> 	inet6 fe80::e6fa:c4ff:fe52:ac4c%urtwn0/64 flags 0 scopeid 0x1
> 	inet 192.168.1.230/24 broadcast 192.168.1.255 flags 0
> lo0: flags=0x8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33176
> 	status: active
> 	inet6 ::1/128 flags 0x20<NODAD>
> 	inet6 fe80::1%lo0/64 flags 0 scopeid 0x2
> 	inet 127.0.0.1/8 flags 0
> bwfm0: flags=0x8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
> 	ssid "" nwkey 65536:"","","",""
> 	powersave off
> 	address: b8:27:eb:ed:85:47
> 	media: IEEE802.11 autoselect
> 	status: no network
> netbsd-raspa#
> 
> I have also the same problem that I had with the chineese 8188FTV,  as
> soon I connect it to the raspberry pi it reboots inmediately. In the
> next reboot it works fine. It occurs the same in another Zero W that I
> own  with Raspbian and a different power supply. So I doubt that the
> culprit is the power supply. The Zero W seems to be a very flaky device
> in terms of power supply.
> 
A powered hub should fix that, when a device is plugged directly into the 
raspberry pis usb (IIRC only 300mA is available) it can cause reboots.

> I am going to test it during several days to see if it works better than
> the flaky bwfm driver for the built in WIFI.
> 
> I do not know if I have to  disable the bwfm driver to avoid any
> interaction or I can leave it as is.

You shouldn't have to disable bwfm(4) just dont bring up it's interface.

> 
> Thanks so much.
> Ramiro.

Best regards,

Nat