Bug#705586: Same problem here
This is on a Dell Inspiron 7520, with a TP-Link TL-WN722N USB wifi adapter.
dmesg of plugging in the wifi adapter:
> Mar 14 12:37:18 steel kernel: [3156823.752132] usb 1-3: new high-speed USB device number 47 using xhci_hcd
> Mar 14 12:37:18 steel kernel: [3156823.776898] usb 1-3: New USB device found, idVendor=0cf3, idProduct=9271
> Mar 14 12:37:18 steel kernel: [3156823.776905] usb 1-3: New USB device strings: Mfr=16, Product=32, SerialNumber=48
> Mar 14 12:37:18 steel kernel: [3156823.776909] usb 1-3: Product: USB2.0 WLAN
> Mar 14 12:37:18 steel kernel: [3156823.776912] usb 1-3: Manufacturer: ATHEROS
> Mar 14 12:37:18 steel kernel: [3156823.776915] usb 1-3: SerialNumber: 12345
> Mar 14 12:37:18 steel kernel: [3156823.782103] usb 1-3: firmware: agent loaded htc_9271.fw into memory
> Mar 14 12:37:18 steel kernel: [3156824.064268] usb 1-3: ath9k_htc: Transferred FW: htc_9271.fw, size: 51272
> Mar 14 12:37:18 steel kernel: [3156824.064417] xhci_hcd 0000:00:14.0: ERROR no room on ep ring
> Mar 14 12:37:18 steel kernel: [3156824.067203] usb 1-3: ath9k_htc: Unable to allocate URBs
> Mar 14 12:37:18 steel kernel: [3156824.067231] ath9k_htc: probe of 1-3:1.0 failed with error -22
> dpkg -s linux-image-3.2.0-4-amd64 | grep Version
Version: 3.2.65-1+deb7u2
> dpkg -s firmware-atheros | grep Version
Version: 0.36+wheezy.1
> uname -a
Linux steel 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u2 x86_64 GNU/Linux
> lsusb -d 0cf3:
Bus 001 Device 047: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
Let me know if i can supply more information.
--
Sebastian Kuzminsky
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