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Old 11-13-2014, 08:18 PM   #1
Darrell22
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Registered: Nov 2003
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Question How to Configure USB Wireless Adapter?


Dear Experts,

I've installed Redhat 6.4 on an Acer laptop.


uname -a
Linux acer8372 2.6.39-400.17.1.el6uek.x86_64 #1 SMP Fri Feb 22 18:16:18 PST 2013 x86_64 x86_64 x86_64 GNU/Linux

cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.4 (Santiago)

----

The Broadcom drivers for the internal wireless adapter are giving me trouble.

However, when I connect my Belkin USB Wireless Adapter, it gets recognized.
(Isn't it nice when software works properly?)


dmesg:

usb 2-1.1: new high speed USB device number 3 using ehci_hcd
usb 2-1.1: New USB device found, idVendor=050d, idProduct=705a
usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1.1: Product: Belkin 54g USB Network Adapter
usb 2-1.1: Manufacturer: Belkin
usb 2-1.1: configuration #1 chosen from 1 choice

---

lsusb -v

Bus 002 Device 003: ID 050d:705a Belkin Components F5D7050 Wireless G Adapter v3000 [Ralink RT2571W]
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x050d Belkin Components
idProduct 0x705a F5D7050 Wireless G Adapter v3000 [Ralink RT2571W]
bcdDevice 0.01
iManufacturer 1 Belkin
iProduct 2 Belkin 54g USB Network Adapter
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 300mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)


-----

ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1E:33:29:5D:??
inet addr:192.168.2.101 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::21e:33ff:fe29:5dda/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5696 errors:0 dropped:0 overruns:0 frame:0
TX packets:6244 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4013513 (3.8 MiB) TX bytes:1514529 (1.4 MiB)
Interrupt:18

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:16 errors:0 dropped:0 overruns:0 frame:0
TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:960 (960.0 b) TX bytes:960 (960.0 b)

virbr0 Link encap:Ethernet HWaddr 52:54:00:B7:9B:??
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 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)

virbr0-nic Link encap:Ethernet HWaddr 52:54:00:B7:9B:??
BROADCAST MULTICAST MTU:1500 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:500
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

wlan0 Link encap:Ethernet HWaddr 00:22:75:4F:92:??
BROADCAST MULTICAST MTU:1500 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:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)


----

There is an eth0 file:

find /etc -type f | grep -i "eth0"

/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/networking/devices/ifcfg-eth0
/etc/sysconfig/networking/profiles/default/ifcfg-eth0



But there is no wlan file

find /etc -type f | grep -i "wlan"
- nothing


-------

The wlan file needs to exist and be configured. Correct?

If so, can I copy the file ifcfg-eth0, and modify it?
Which parts would need to be modified?


Thanks a lot!
 
Old 11-13-2014, 08:43 PM   #2
frankbell
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Location: Virginia, USA
Distribution: Slackware, Ubuntu MATE, Mageia, and whatever VMs I happen to be playing with
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I'm gathering the Broadcom wireless is internal, and the USB is your external card that works.

This post should help you get started with the built-in Broadcom: http://www.linuxquestions.org/questi...ux-4175434970/

This article on the CentOS wiki might also help: http://wiki.centos.org/HowTos/Laptops/Wireless/Broadcom

Last edited by frankbell; 11-13-2014 at 08:48 PM.
 
Old 11-14-2014, 04:01 PM   #3
Darrell22
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Registered: Nov 2003
Posts: 83

Original Poster
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Thanks

Thanks Frank. I do appreciate it!
 
  


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