Output from generic r8192cu adapter.
tc@box:~$ uname -a
Linux box 3.14.0-piCore+ #1 PREEMPT Sun Apr 6 19:53:00 CEST 2014 armv6l GNU/Linux
tc@box:~$ lsusb
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp. SMC9512/9514 USB Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter
tc@box:~$ lsmod
Module Size Used by Not tainted
8192cu 545767 0
regmap_i2c 1534 0
regmap_spi 1786 0
regmap_mmio 2669 0
dmesg output
[ 3.890986] Indeed it is in host mode hprt0 = 00021501
[ 4.131048] usb 1-1: new high-speed USB device number 2 using dwc_otg
[ 4.131235] Indeed it is in host mode hprt0 = 00001101
[ 4.411378] usb 1-1: New USB device found, idVendor=0424, idProduct=9512
[ 4.411412] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.412328] hub 1-1:1.0: USB hub found
[ 4.412480] hub 1-1:1.0: 3 ports detected
[ 4.691099] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[ 4.791320] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.791355] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.794519] smsc95xx v1.0.4
[ 4.854680] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet,
[ 4.931103] usb 1-1.2: new high-speed USB device number 4 using dwc_otg
[ 5.032689] usb 1-1.2: New USB device found, idVendor=0bda, idProduct=8176
[ 5.032723] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5.032738] usb 1-1.2: Product: 802.11n WLAN Adapter
[ 5.032752] usb 1-1.2: Manufacturer: Realtek
[ 5.032764] usb 1-1.2: SerialNumber: 00e04c000001
[ 9.440222] random: mkswap urandom read with 27 bits of entropy available
[ 9.454381] Adding 106820k swap on /dev/zram0. Priority:-1 extents:1 across:106820k SSFS
[ 12.366870] EXT4-fs (mmcblk0p2): recovery complete
[ 12.369350] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 12.513526] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 14.863887] random: nonblocking pool is initialized
[ 27.494116] usbcore: registered new interface driver rtl8192cu
[ 30.559546] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 32.153823] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
This adapter responds to scan. At least iwconfig shows power saving off.
tc@box:~$ iwconfig
wlan0 IEEE 802.11bgn ESSID:"McHouse" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency:2.442 GHz Access Point: 48:5B:39:39:CE:64
Bit Rate:150 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=100/100 Signal level=100/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
dummy0 no wireless extensions.
lo no wireless extensions.
eth0 no wireless extensions.
tunl0 no wireless extensions.
tc@box:~$ iwlist wlan0 scanning
wlan0 Scan completed :
Cell 01 - Address:
ESSID:"2WIRE164"
Protocol:IEEE 802.11bg
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:on
Bit Rates:54 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2040050f20201000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Quality=100/100 Signal level=100/100
Cell 02 - Address:
ESSID:"McHouse"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.417 GHz (Channel 2)
Encryption key:off
Bit Rates:300 Mb/s
Quality=15/100 Signal level=47/100
Cell 03 - Address:
ESSID:"McHouse"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.442 GHz (Channel 7)
Encryption key:off
Bit Rates:300 Mb/s
Quality=100/100 Signal level=100/100