Why can't I detect USB 2.0 on Linux Kernel 2.6?

Bruce Hill · 02-22-2006, 05:36 AM

Your kernel config looks fine except you didn't display:

Code:

# USB Input Devices
#
CONFIG_USB_HID=m
CONFIG_USB_HIDINPUT=y
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set

but I think you have HID compiled because your first post has

Quote:

usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver

I've asked some questions in post #10 that you didn't answer:

Quote:

What is this device you are plugging in?

Where are you plugging it in? Sometimes front USB ports won't detect USB 2.0 devices, and unpowered hubs won't ever.

Can you try the USB port on the back closest to your power supply?

And is there another device you could try also?

After plugging it into that USB port in the back, wait and issue "dmesg | tail" and give the output again, please. It's a given that your kernel isn't detecting the device, but we don't know why.

Please give the make and model of the flash disk.

And are you sure there's no info in "fdisk -l" with it plugged in? It doesn't have to be mounted for it to display there.

jas · 02-22-2006, 09:07 PM

Quote:

What is this device you are plugging in?

--- It's EasyDisk Platinum USB Flash Disk

Quote:

Where are you plugging it in? Sometimes front USB ports won't detect USB 2.0 devices, and unpowered hubs won't ever.

--- I'm plugging it at the back. There are 2 USB ports at the back. I tried both, but it's still the same

Quote:

Can you try the USB port on the back closest to your power supply?

--- Yes, it's at the back

Quote:

And is there another device you could try also?

--- I've also tried a USB charger

Here's the output of dmesg | tail:
usb 1-1: khubd timed out on ep0out
usb 1-1: khubd timed out on ep0out
usb 1-1: device not accepting address 5, error -145
usb 1-1: new high speed USB device using ehci_hcd and address 6
usb 1-1: khubd timed out on ep0in
usb 1-1: khubd timed out on ep0out
usb 1-1: khubd timed out on ep0out
usb 1-1: device not accepting address 6, error -145

Quote:

And are you sure there's no info in "fdisk -l" with it plugged in? It doesn't have to be mounted for it to display there.

--- yes, there's nothing. no result on fdisk -l:
# fdisk -l
#

Bruce Hill · 02-22-2006, 09:57 PM

At this point I'd try it on another computer to see if the disk actually works. I believe you've searched with those error messages, especially Google <Linux>.