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Topic: How to use USB hub with WL500gP?

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Post #1
petrs
1 Jun 2007, 15:05

Hi,
I need connect at least 4 USB peripherals to my WL500gP but when I try to connect them using USB hub, they do not work. If connected directly to USB port they work fine. Tested with USB Flash Disc, BT Dongle, Prolific 2303 USB/RS232 cable, webcam etc.

#lsusb
Bus 003 Device 004: ID 05e3:0606 Genesys Logic, Inc.
#dmesg | grep hub
usb.c: registered new driver hub
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: USB hub found
hub.c: 4 ports detected
hub.c: connect-debounce failed, port 1 disabled
hub.c: new USB device 01:03.2-1, assigned address 2
hub.c: USB hub found
hub.c: 4 ports detected
hub.c: new USB device 01:03.2-1.1, assigned address 3
hub.c: new USB device 01:03.0-2, assigned address 2
hub.c: connect-debounce failed, port 2 disabled
hub.c: new USB device 01:03.0-2, assigned address 3
hub.c: new USB device 01:03.0-2, assigned address 4
hub.c: new USB device 01:03.2-2, assigned address 4
hub.c: USB hub found
hub.c: 4 ports detected

(Last edited by petrs on 1 Jun 2007, 15:06)

Post #2
manoweb
1 Jun 2007, 15:09

I am not near my device now - it's mounted at the top of a mountain connected with a digicam: http://lnx.manoweb.com/wifi/webcam - but I tested 4 digicams connected together with a small no-brand USB hub and it was working fine, with kamikaze kernel 2.4

Post #3
petrs
1 Jun 2007, 15:23

I bought another small hub but it has the same ID (in lsusb) so as I can expect it does not work too. sad

(Last edited by petrs on 1 Jun 2007, 15:24)

Post #4
mbm
1 Jun 2007, 17:42

Try using a powered usb hub.

Post #5
petrs
1 Jun 2007, 21:24

I don't think that problem is power consumption. Device is always detected but not claimed by any active driver. For example USB MMC/SD card reader with 1 GB SD connected to hub and then directly:

hub.c: new USB device 01:03.2-1.1, assigned address 3
usb.c: USB device 3 (vend/prod 0x416/0x7723) is not claimed by any active driver.
usb.c: USB disconnect on device 01:03.2-1.1 address 3
usb.c: USB disconnect on device 01:03.2-1 address 2
hub.c: new USB device 01:03.0-1, assigned address 6
scsi1 : SCSI emulation for USB Mass Storage devices
  Vendor: General   Model: USB Disk Drive    Rev: 1.00
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi removable disk sdb at scsi1, channel 0, id 0, lun 0
SCSI device sdb: 1931265 512-byte hdwr sectors (989 MB)
sdb: Write Protect is off
 /dev/scsi/host1/bus0/target0/lun0: p1 p2
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 6
Post #6
florian_
3 Jun 2007, 09:59

It works, just you have turned on write protection for your SD card. I don't think a hub should be claimed by any driver.

Post #7
petrs
7 Jun 2007, 08:47

I don't think problem is write protection. See previous post.

Line 2 is USB MMC/SD card reader connected to hub - but not claimed by any active driver. Line 3 disconnecting reader, 4 disconnecting hub. Line 5 and following describes the same reader connected directly.

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