[SOLVED] device descriptor read/64, error -71 - USB problem

[jmiguel77]

what if i do this :

sudo echo Y > /sys/module/usbcore/parameters/old_scheme_first

and get this:

bash: /sys/module/usbcore/parameters/old_scheme_first: Permission denied

[pytheas22]

what if i do this :

sudo echo Y > /sys/module/usbcore/parameters/old_scheme_first

and get this:

bash: /sys/module/usbcore/parameters/old_scheme_first: Permission denied

The problem is that the second command (into which the first is being redirected using the > operator) isn't being run as root. Try this:

echo Y | sudo tee /sys/module/usbcore/parameters/old_scheme_first

That should work.

[dortmann]

I just encountered this USB error on 10.04. Simultaneously, my X would not boot. I noticed "vga16fb" had somehow snuck into the system ... it was missing from etc modprobe.d framebuffer blacklist.

I after adding vga16fb to the blacklist file I have both X and usb functionality again.

DISABLE ALL FRAMEBUFFER MODULES.

lsmod | grep fb


Hope this helps.
dortmann31415@yahoo.com

[burneverything]

The problem is that the second command (into which the first is being redirected using the > operator) isn't being run as root. Try this:

echo Y | sudo tee /sys/module/usbcore/parameters/old_scheme_first

That should work.

Fixed my problem with a Mac borked HDD that would not mount.

thanks

[trippedn]

hey guys, just put a clean install of Ubuntu back on my computer and of course had the same problem with the USB/Camera. Did a bit of research and found this so damn easy solution on the Mint Forum:

in the terminal type: echo -1 >/sys/module/usbcore/parameters/autosuspend

I was logged in as root - not sure whether necessary. Then just reboot and Bob's your Uncle.

Worked a treat for me.

Very old thread, but this is still very applicable. I have some devices that would not connect and this fixed it.

The old value was 2 (seconds).

Here is some documentation for some of the other values that can be configured:

usbcore.autosuspend=
		[USB] The autosuspend time delay (in seconds) used
		for newly-detected USB devices (default 2).  This
		is the time required before an idle device will be
		autosuspended.  Devices for which the delay is set
		to a negative value won't be autosuspended at all.

usbcore.usbfs_snoop=
		[USB] Set to log all usbfs traffic (default 0 = off).

usbcore.blinkenlights=
		[USB] Set to cycle leds on hubs (default 0 = off).

usbcore.old_scheme_first=
		[USB] Start with the old device initialization
		scheme (default 0 = off).

usbcore.use_both_schemes=
		[USB] Try the other device initialization scheme
		if the first one fails (default 1 = enabled).
	
usbcore.initial_descriptor_timeout=
		[USB] Specifies timeout for the initial 64-byte
                USB_REQ_GET_DESCRIPTOR request in milliseconds
		(default 5000 = 5.0 seconds).