Tool/software:
Hi
I have this problem in my application: when I connect a USB 2.0 device on the Downstream 1 port some devices are recognized (ex. usb programmer, wireless mouse key...), others are detected but not recognized (ex. cellular phone, Camera...) and some (ex. WIFI dongle) are not detected at all.
When I connect a device it is only detected I see this:
[ 57.928215] usb 1-1.1: new high-speed USB device number 5 using xhci-hcd
[ 58.000423] usb 1-1.1: device descriptor read/64, error -71
[ 58.176386] usb 1-1.1: device descriptor read/64, error -71
[ 58.352145] usb 1-1.1: new high-speed USB device number 6 using xhci-hcd
[ 58.424248] usb 1-1.1: device descriptor read/64, error -71
[ 58.600382] usb 1-1.1: device descriptor read/64, error -71
[ 58.705018] usb 1-1-port1: attempt power cycle
[ 59.288136] usb 1-1.1: new high-speed USB device number 7 using xhci-hcd
[ 59.288678] usb 1-1.1: Device not responding to setup address.
[ 59.492404] usb 1-1.1: Device not responding to setup address.
[ 59.696187] usb 1-1.1: device not accepting address 7, error -71
[ 59.768170] usb 1-1.1: new high-speed USB device number 8 using xhci-hcd
[ 59.768493] usb 1-1.1: Device not responding to setup address.
[ 59.972411] usb 1-1.1: Device not responding to setup address.
[ 60.180201] usb 1-1.1: device not accepting address 8, error -71
[ 60.180624] usb 1-1-port1: unable to enumerate USB device
Ports 2-3-4 are connected via usb 2.0 to internal devices on the board that are recognized correctly.
I checked USB_VBUS Voltage on pin 48 and it is 0.5V
The +5V_USB voltage is present on the connector when I connect the devices (I read 4.98V on the devices not detected but the problem occurs even if I power the USB device externally)
Do you have any idea about this issue?
Andrea
