Hi Michael, Adding Peter Chen. On Wed, Nov 8, 2017 at 8:41 AM, Michael Nazzareno Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx> wrote: > Hi Alan > > I'm working on IMX25 platform where I have a USB251xBi family > connected to the ehci full speed serial port. > IMX25 is capable to manage only full speed port using internal > transceiver. Now we found a usb key where > I get : > > [ 2.457831] usb 2-1.2: new full-speed USB device number 3 using ci_hdrc > [ 8.593153] usb 2-1-port2: cannot reset (err = -110) > [ 9.633234] usb 2-1-port2: cannot reset (err = -110) > [ 10.673155] usb 2-1-port2: cannot reset (err = -110) > [ 11.732003] usb 2-1-port2: cannot reset (err = -110) > [ 12.833154] usb 2-1-port2: cannot reset (err = -110) > [ 12.836859] usb 2-1-port2: Cannot enable. Maybe the USB cable is bad? Does it help if you pass 'usbcore.autosuspend=-1' in the kernel command line? -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html