Im using an ODroid wifi dongle (MediaTek(Ralink) RT5572N chipset) on a jetston TK1 ARM board. The dongle works fine on other linux machines but on the jetson, for some odd reason, it will only show (and connect to) wifi networks at channel 11 and nothing else.
iwlist / nmcli / wifi-radar only display the channel 11 networks even though there are other strong networks at lower and higher channels.
Ubuntu 14.04.1 LTS, uname:
Linux tegra-ubuntu 3.10.40-grinch-21.3.4 #1 SMP PREEMPT Fri May 1 10:41:09 UTC 2015 armv7l armv7l armv7l GNU/Linux
dmesg output:
[ 5522.348831] usb 2-1.2: new high-speed USB device number 31 using tegra-ehci
[ 5522.405935] usb 2-1.2: New USB device found, idVendor=148f, idProduct=5572
[ 5522.406154] usb 2-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5522.411722] usb 2-1.2: Product: 802.11 n WLAN
[ 5522.411816] usb 2-1.2: Manufacturer: Ralink
[ 5522.411886] usb 2-1.2: SerialNumber: 1.0
[ 5522.509661] usb 2-1.2: reset high-speed USB device number 31 using tegra-ehci
[ 5522.553574] ieee80211 phy2: rt2x00_set_rt: Info - RT chipset 5592, rev 0222 detected
[ 5522.607281] ieee80211 phy2: rt2x00_set_rf: Info - RF chipset 000f detected
[ 5522.610789] ieee80211 phy2: Selected rate control algorithm 'minstrel_ht'
[ 5522.828157] ieee80211 phy2: rt2x00lib_request_firmware: Info - Loading firmware file 'rt2870.bin'
[ 5522.829747] ieee80211 phy2: rt2x00lib_request_firmware: Info - Firmware detected - version: 0.29
lsusb:
Bus 002 Device 031: ID 148f:5572 Ralink Technology, Corp. RT5572 Wireless Adapter
iw reg get:
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
Channel list
$ iwlist wlan0 chan
wlan0 29 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Channel 14 : 2.484 GHz
Channel 36 : 5.18 GHz
Channel 38 : 5.19 GHz
Channel 40 : 5.2 GHz
Channel 42 : 5.21 GHz
Channel 44 : 5.22 GHz
Channel 46 : 5.23 GHz
Channel 48 : 5.24 GHz
Channel 149 : 5.745 GHz
Channel 151 : 5.755 GHz
Channel 153 : 5.765 GHz
Channel 155 : 5.775 GHz
Channel 157 : 5.785 GHz
Channel 159 : 5.795 GHz
Channel 161 : 5.805 GHz
Channel 165 : 5.825 GHz