On Mon, 2 Jul 2007 10:25:58 -0700 (PDT) [EMAIL PROTECTED] wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=8705 > > Summary: "Cannot enable port 3. Maybe the USB cable is bad?" > Product: Drivers > Version: 2.5 > KernelVersion: 2.6.22 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: USB > AssignedTo: [EMAIL PROTECTED] > ReportedBy: [EMAIL PROTECTED] > > > Most recent kernel where this bug did not occur: N/A > Distribution: Known on Ubuntu feisty/gutsy and Fedora > Hardware Environment: DM-140GINK Demo / HMC-2K53A > Software Environment: N/A > Problem Description: "Cannot enable port 3. Maybe the USB cable is bad?" > > 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 (4th) "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. Bug is also visible in mainline vanilla > kernel. There is no known workaround at this stage, stops host booting and > limits performance of machine when connected. > > Maybe the kernel should detect something _is bad_, then disable it? Rather > than > keep trying. > > Steps to reproduce: > Connect the device to USB headers. > > > -- > Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are on the CC list for the bug, or are watching someone who is.
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