[GTALUG] Raspberry PI wifi problem

Evan Leibovitch evan at telly.org
Fri Aug 25 05:07:48 EDT 2017


Sheesh.

Six replies, and only on actually relevant to the question asked.

Thanks, Russell. I'd seen that page.
It indicates that the MT7601U driver is already in the kernel after kernel
4.2.
I see it there, it shows up what I run `lsmod`.

But I still can't get it running.

Under `usb-devices` I have

T:  Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#=  4 Spd=480 MxCh= 0
D:  Ver= 2.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=148f ProdID=7601 Rev=00.00
S:  Manufacturer=MediaTek
S:  Product=802.11 n WLAN
S:  SerialNumber=1.0
C:  #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=160mA
I:  If#= 0 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

So I have the kernel module loaded, and the hardware recognized, but the
system isn't matching the device to this driver.

Any suggestions?
Do I go back to the old pre-4.2 driver? Would it react differently to the
current one?

I can get another dongle with another chipset, but that will take time.

- Evan




On 23 August 2017 at 18:31, Russell Reiter <rreiter91 at gmail.com> wrote:

>
>
> On Wed, Aug 23, 2017 at 6:11 PM, Evan Leibovitch via talk <talk at gtalug.org>
> wrote:
> > Hi all.
> >
> > Making networking run on Linux desktops has always been IMO one of the
> > reasons why it's not caught on. Stuff just shouldn't be this hard.
> >
> > I have a RPi Model B running current Raspian, and a wifi dongle that
> claims
> > to run on it.
>
> These instructions might help. Some driver updates from 2015 and source
> links.
>
> https://groenholdt.net/Computers/RaspberryPi/MediaTek-MT7601-USB-WIFI-on-
> the-Raspberry-Pi/MediaTek-MT7601-USB-WIFI-on-the-Raspberry-Pi.html
>
>
> >
> > `lsusb` reports it as
> > Bus 001 Device 004: ID 148f:7601 Ralink Technology, Corp. MT7601U
> Wireless
> > Adapter
> >
> > and `usb-devices` says:
> > T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 4 Spd=480 MxCh= 0
> > D: Ver= 2.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> > P: Vendor=148f ProdID=7601 Rev=00.00
> > S: Manufacturer=MediaTek
> > S: Product=802.11 n WLAN
> > S: SerialNumber=1.0
> > C: #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=160mA
> > I: If#= 0 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
> >
> > Now... even though it says "Driver=(none)" on that last line, `lsmod`
> > reports:
> > Module Size Used by
> > [...]
> > mt7601u 86636 0
> > mac80211 650707 1 mt7601u
> > cfg80211 525998 2 mac80211,mt7601u
> > [...]
> > snd_hwdep 6479 1 snd_usb_audio
> > videodev 177702 3 uvcvideo,videobuf2_core,videobuf2_v4l2
> > snd_usbmidi_lib 22479 1 snd_usb_audio
> > snd_rawmidi 23727 1 snd_usbmidi_lib
> > media 28994 2 uvcvideo,videodev
> > rfkill 21373 2 cfg80211
> > snd_seq_device 5266 1 snd_rawmidi
> > snd_bcm2835 23131 0
> > snd_pcm 97825 2 snd_usb_audio,snd_bcm2835
> > snd_timer 22706 1 snd_pcm
> > snd 68784 8
> > snd_hwdep,snd_usb_audio,snd_timer,snd_rawmidi,snd_usbmidi_
> lib,snd_seq_device,snd_bcm2835,snd_pcm
> > bcm2835_gpiomem 3791 0
> > uio_pdrv_genirq 3718 0
> > uio 10166 1 uio_pdrv_genirq
> > fixed 3029 0
> > ip_tables 12512 0
> > x_tables 20921 1 ip_tables
> > ipv6 384391 18
> >
> > So there is a module called mt7201u being loaded yet it's not seen as the
> > associated driver to this card in usb-devices and it's definitely not
> > showing in ifconfig or iwconfig.
> >
> > Any suggestions on what I'm missing is greatly appreciated.
> >
> >
> > --
> > Evan Leibovitch
> > Toronto, Canada
> >
> > Em: evan at telly dot org
> > Sk: evanleibovitch
> > Tw: el56
> >
> >
> > ---
> > Talk Mailing List
> > talk at gtalug.org
> > https://gtalug.org/mailman/listinfo/talk
> >
>



-- 
Evan Leibovitch
Toronto, Canada

Em: evan at telly dot org
Sk: evanleibovitch
Tw: el56
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