Error 8B06 when iwconfig wlan0 mode master

Does this mean my USB wireless adapter does NOT support Master mode and
that I need to go hostapd?

*** quote ****
root@server:/etc# iwconfig

wlan0 IEEE 802.11bg ESSID:"mywireless"
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=20 dBm
Retry min limit:7 RTS thrff Fragment thrff
Encryption keyff
Power Managementff
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

root@server:/etc# iwconfig wlan0 mode master

Error for wireless request "Set Mode" (8B06) :
SET failed on device wlan0 ; Invalid argument.


--
@~@ Might, Courage, Vision, SINCERITY.
/ v \ Simplicity is Beauty! May the Force and Farce be with you!
/( _ )\ (Ubuntu 9.04) Linux 2.6.30.1
^ ^ 19:22:03 up 3:23 1 user load average: 3.92 3.75 3.73
???! ???! ???! ???! ???! ???! ????? (CSSA):
http://www.swd.gov.hk/tc/index/site_...sub_addressesa

More information:

root@server:/etc# lsusb
Bus 001 Device 006: ID 0b05:1706 ASUSTek Computer, Inc. WL-167G 802.11g
Adapter [ralink]


--
@~@ Might, Courage, Vision, SINCERITY.
/ v \ Simplicity is Beauty! May the Force and Farce be with you!
/( _ )\ (Ubuntu 9.04) Linux 2.6.30.1
^ ^ 19:33:04 up 3:34 1 user load average: 4.04 3.84 3.75
???! ???! ???! ???! ???! ???! ????? (CSSA):
http://www.swd.gov.hk/tc/index/site_...sub_addressesa