On 02/07/2015 10:54 AM, Simon Raffeiner (SCC) wrote:
Hello everyone,
one of my USB wireless adapters, based on the Ralink RT5390/RT5370
chipset and RF, no longer works on more recent kernels. It doesn't
report any networks on "iw dev wlan0 scan" and doesn't associate if told
to do so.
Tested kernels are:
3.16.0-30-generic (Ubuntu 14.10): Works
3.18.0-12-generic (Ubuntu 15.04): Does not work
3.19.0-rc7 (built manually): Does not work
Firmware md5sums (rt2870.bin is loaded):
99bce75086ea635a2f8288d9b835f787 /lib/firmware/rt2561.bin
2878d5eaa4ff907d4df36a834915aa53 /lib/firmware/rt2561s.bin
9998485bc152cf0f39dd61a33b92ad9b /lib/firmware/rt2661.bin
75a1da3caa0b1c95e81dfba207f834c6 /lib/firmware/rt2860.bin
36c944c3138125605d28c0a3a1338be9 /lib/firmware/rt2870.bin
36c944c3138125605d28c0a3a1338be9 /lib/firmware/rt3070.bin
75a1da3caa0b1c95e81dfba207f834c6 /lib/firmware/rt3090.bin
f8d8051e24cd4c8c298bc84c7309fe1a /lib/firmware/rt3290.bin
bd733372ae21a010bf8a5511d7711c2d /lib/firmware/rt73.bin
A dmesg output for the non-working kernel 3.18.0-12-generic is attached.
I do not maintain these drivers, but as no one else has answered, I will offer
some suggestions.
First of all, it would be helpful if you posted the USB ID as shown by lsusb. As
the kernel loaded the module, it must be one in the tables, but that info is
usually needed.
The second thing to verify is that your configuration contains the line
"CONFIG_RT2800USB_RT53XX=y". This parameter is marked as depending on
EXPERIMENTAL, and I'm not sure that Ubuntu enables those parameters in their
kernels. Again as the module was loaded, I think your kernel is OK, but that
parameter is something to check.
Finally, if your kernel configuration is OK, you will probably need to bisect
the problem between v3.18 and v3.16. I have a device that uses rt2800usb, but it
is not a 53XX. FWIW, it works.
Larry
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