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* Re: rt2800usb firmware rt2870.bin 0.36 not scanning
@ 2016-06-04 17:22 Xose Vazquez Perez
  2016-06-09  2:47 ` Craig McQueen
  0 siblings, 1 reply; 8+ messages in thread
From: Xose Vazquez Perez @ 2016-06-04 17:22 UTC (permalink / raw)
  To: Craig McQueen, linux-wireless

Craig McQueen wrote:

> I have a D-Link DWA-140 USB Wi-Fi device which is rt2800 based (5392
> chipset). I'm trying to use it on a BeagleBone Black based system with
> 3.14.x kernel built with Yocto. We're using ConnMan 1.30 at the moment.

Try it with a _desktop x86_64 distribution_ , with a *recent kernel*
as Fedora: (WORK is gnome) https://alt.fedoraproject.org/pub/alt/live-respins/

> We've been finding some instabilities with it periodically disconnecting
> from some networks. So we tried upgrading the firmware file rt2870.bin
> from version 0.29 to 0.36. That seems to be more stable with the
> network. However, we're finding that it initially doesn't connect, until
> the Wi-Fi has been disabled and then re-enabled. '  scan wifi'
> and 'iwlist scan' don't return anything until Wi-Fi has been disabled
> and then re-enabled.

Don't use any wrapper(NM, ConnMan, wicd, ...), usually are buggy. You should
use raw commands "iw" and "wpa_supplicant". Hints:
https://wireless.wiki.kernel.org/en/users/documentation/iw and  wpa_supplicant
always running with "-Dnl80211"

> Have there been any Linux driver changes needed to support this 0.36
> firmware? Does anyone have any pointers on where to look to understand
> this behaviour between 0.29 and 0.36 firmware?

closed source, but old changelogs are available at:
http://rt2x00.serialmonkey.com/pipermail/users_rt2x00.serialmonkey.com/2013-September/006391.html

Related to latest firmware releases, ralink/mediatek guys say:
"According to the engineers comment, the firmware didn't change much
these years, just some bbp register update and led stuff."

^ permalink raw reply	[flat|nested] 8+ messages in thread
* rt2800usb firmware rt2870.bin 0.36 not scanning
@ 2016-06-03  6:28 Craig McQueen
  0 siblings, 0 replies; 8+ messages in thread
From: Craig McQueen @ 2016-06-03  6:28 UTC (permalink / raw)
  To: linux-wireless@vger.kernel.org

I have a D-Link DWA-140 USB Wi-Fi device which is rt2800 based (5392 chipset). I'm trying to use it on a BeagleBone Black based system with 3.14.x kernel built with Yocto. We're using ConnMan 1.30 at the moment.

We've been finding some instabilities with it periodically disconnecting from some networks. So we tried upgrading the firmware file rt2870.bin from version 0.29 to 0.36. That seems to be more stable with the network. However, we're finding that it initially doesn't connect, until the Wi-Fi has been disabled and then re-enabled. 'connmanctl scan wifi' and 'iwlist scan' don't return anything until Wi-Fi has been disabled and then re-enabled.

Have there been any Linux driver changes needed to support this 0.36 firmware? Does anyone have any pointers on where to look to understand this behaviour between 0.29 and 0.36 firmware?

-- 
Craig McQueen


^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2017-12-14 12:48 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-06-04 17:22 rt2800usb firmware rt2870.bin 0.36 not scanning Xose Vazquez Perez
2016-06-09  2:47 ` Craig McQueen
2016-06-15  4:02   ` Craig McQueen
2016-06-16 23:37   ` Craig McQueen
2016-06-23  6:58   ` Craig McQueen
2017-12-13 23:24     ` Craig McQueen
2017-12-14 12:47       ` Stanislaw Gruszka
  -- strict thread matches above, loose matches on Subject: below --
2016-06-03  6:28 Craig McQueen

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