Hi, I'm using a high power 2W ralink 2870 based card on kernel 3.2.24
After "some time", usually more frequently than daily I will get some
kind of USB event and the device starts giving the error messages shown
below. However, curiously I can trigger this to happen more frequently
if I connect various high power devices to the bus, eg 3G dongles, or if
I put the ralink on an unpowered hub (double trouble if I connect a 3G
card to the unpowered hub also). Using the external hub I can usually
trigger this event within 10-15 minutes or less.
The rt2870 is connected to a PC Engines Alix 2D13 board, which may or
may not have the highest power USB output... Certainly given that
putting it and other things on an unpowered hub increases the frequency
of the event suggests that there might be some kind of bus reset or
similar going on from time to time?
Unplugging the USB cable and replugging gets everything going again for
a while.
Can anyone advise on how I might debug this further and more
specifically how I might look to fix the driver so that it can survive
these events, eg resetting itself or whatever?
Thanks for your thoughts
Ed W
[ 1366.773220] usb 1-2.1.2: new high-speed USB device number 10 using
ehci_hcd
[ 1366.886905] usb 1-2.1.2: New USB device found, idVendor=148f,
idProduct=3070
[ 1366.886936] usb 1-2.1.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1366.886961] usb 1-2.1.2: Product: 802.11 n WLAN
[ 1366.886980] usb 1-2.1.2: Manufacturer: Ralink
[ 1366.886999] usb 1-2.1.2: SerialNumber: 1.0
[ 1366.959255] usb 1-2.1.2: reset high-speed USB device number 10 using
ehci_hcd
[ 1367.089973] ieee80211 phy3: Selected rate control algorithm 'minstrel_ht'
[ 1367.090232] Registered led device: rt2800usb-phy3::radio
[ 1367.090232] Registered led device: rt2800usb-phy3::assoc
[ 1367.090232] Registered led device: rt2800usb-phy3::quality
[ 1368.102806] ADDRCONF(NETDEV_UP): wlan1: link is not ready
...
[15341.418076] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x06 failed for offset 0x101c with error -110.
[15391.728468] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x1004 with error -110.
[15442.072138] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x06 failed for offset 0x1004 with error -110.
[15492.303784] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x0438 with error -110.
[15542.584686] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x0438 with error -110.
... repeats ...
[21722.478820] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x0500 with error -110.
[21772.803669] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x0500 with error -110.
[21823.128895] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x0500 with error -110.
[21823.129032] phy3 -> rt2x00usb_regbusy_read: Error - Indirect register
access failed: offset=0x00000500, value=0xceeff264
[21873.378671] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x0500 with error -110.
[21923.660712] phy3 -> rt2x00usb_vendor_request: Error - Vendor Request
0x07 failed for offset 0x0500 with error -110.
The "usb_regbusy_read" is occasional and the "value" varies
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