On Mon, 2 Jul 2007, Dave Walker wrote: > This bug occurs when a PCB module that provides the following internal > features: > * Generic 4 port Hub (Genesys GL850A) - problems with port 3! > => Futaba "DM-140GINK Demo", (usbhid driver) - VFD (LCD) & Panel > Buttons > => Ralink RT2571WF > > This is all encased within the PCB, so there is no extra access to the > hub. > > When the devices is connected: > [ 699.188000] usb 4-8: new high speed USB device using ehci_hcd and > address 39 > [ 699.320000] usb 4-8: configuration #1 chosen from 1 choice > [ 699.320000] hub 4-8:1.0: USB hub found > [ 699.320000] hub 4-8:1.0: 4 ports detected > [ 699.624000] usb 4-8.1: new high speed USB device using ehci_hcd and > address 40 > [ 699.852000] usb 4-8.1: configuration #1 chosen from 1 choice > [ 700.056000] usb 4-8.2: new full speed USB device using ehci_hcd and > address 41 > [ 700.152000] usb 4-8.2: configuration #1 chosen from 1 choice > [ 700.152000] hiddev96: USB HID v1.10 Device [DM-140GINK Demo > DM-140GINK Demo] on usb-0000:00:13.5-8.2 > [ 700.156000] input: DM-140GINK Demo DM-140GINK Demo > as /class/input/input7 > [ 700.156000] input: USB HID v1.10 Device [DM-140GINK Demo DM-140GINK > Demo] on usb-0000:00:13.5-8.2 > [ 701.116000] hub 4-8:1.0: Cannot enable port 3. Maybe the USB cable > is bad? > [ 701.948000] hub 4-8:1.0: Cannot enable port 3. Maybe the USB cable > is bad? > [ 702.780000] hub 4-8:1.0: Cannot enable port 3. Maybe the USB cable > is bad? > ...(continues) > [ 549.984000] usb 6-8.2: reset full speed USB device using ehci_hcd > and address > > I believe this bug may be caused due to USB standard not being followed > on the hardware. This usb module does work under Windows but complains > of an extra "Unknown Device" (that doesn't really exist). > > When this device is connected, 'lsusb' no longer functions. This bug is > in kernel's as recent as 2.6.22.
Can you post the equivalent log with CONFIG_USB_DEBUG turned on? Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
