EDPU EP-N1528 plug and play, almost

Now I am testing the HK$135 EDUP EP-N1528 USB wireless adapter.  This time I confirmed one strange thing about the plug and play thing.  I found that the first time plugged in, the device doese not work.  It is only the second time plugged in that the device works.

.END


pi@raspberrypi ~ $ date
Sun Apr 14 01:49:18 UTC 2013

pi@raspberrypi ~ $ iwconfig

lo        no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"tlfong01"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:2.412 GHz  Access Point: CC:5D:4E:2B:88:B8
          Bit Rate:54 Mb/s   Sensitivity:0/0
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=100/100  Signal level=99/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

pi@raspberrypi ~ $ ifconfig

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan0     Link encap:Ethernet  HWaddr e8:4e:06:0b:5a:c3
          inet addr:192.168.1.40  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:200 errors:0 dropped:204 overruns:0 frame:0
          TX packets:110 errors:0 dropped:1 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:41045 (40.0 KiB)  TX bytes:18316 (17.8 KiB)

pi@raspberrypi ~ $ lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 001 Device 003: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter

pi@raspberrypi ~ $ lsmod

Module                  Size  Used by
i2c_dev                 5587  0
snd_bcm2835            12808  0
snd_pcm                74834  1 snd_bcm2835
snd_seq                52536  0
snd_timer              19698  2 snd_seq,snd_pcm
snd_seq_device          6300  1 snd_seq
snd                    52489  5 snd_seq_device,snd_timer,snd_seq,snd_pcm,snd_bcm2835
snd_page_alloc          4951  1 snd_pcm
spidev                  5136  0
8192cu                485042  0
i2c_bcm2708             3681  0
spi_bcm2708             4401  0

pi@raspberrypi ~ $ dmesg

...

[    2.613580] usb 1-1: New USB device found, idVendor=1a40, idProduct=0101
[    2.626994] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    2.642990] usb 1-1: Product: USB 2.0 Hub
[    2.654248] hub 1-1:1.0: USB hub found
[    2.664510] hub 1-1:1.0: 4 ports detected

...

[    2.953102] usb 1-1.4: new high-speed USB device number 3 using dwc_otg
[    3.065103] usb 1-1.4: New USB device found, idVendor=0bda, idProduct=8178
[    3.078671] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    3.092368] usb 1-1.4: Product: 802.11n WLAN Adapter
[    3.106093] usb 1-1.4: Manufacturer: Realtek
[    3.119160] usb 1-1.4: SerialNumber: 00e04c000001

pi@raspberrypi ~ $

.END