Rasberry Pi 4 has no USB

[Carl Johnson]

Tim Daneliuk <tundra at tundraware.com> writes:

> On 2/28/21 11:26 AM, Carl Johnson wrote:
>> I have an 8GB RPi 4B that I am trying out, but it has no USB response at
>> all. That means that I can't use a keyboard or mouse, but I can use a
>> serial console and ethernet.  I can plug any USB device into any port,
>> but there is nothing logged in /var/messages.  Running usbconfig as root
>> just reports 'No device match or lack of permissions'.  Running
>> 'dmesg | grep -i usb' reports only the following lines:
>> 
>>   usb_nop_xceiv0: <USB NOP PHY> on ofwbus0
>>   bcm_xhci0: <VL805 USB 3.0 controller (on the Raspberry Pi 4b)> irq 81 at device 0.0 on pci2
>>   usb_needs_explore_all: no devclass
>>   
>> Running 'pciconf -lv' shows there is a VL805 USB controller present.  I
>> tested this with Linux and everything worked properly.  This is a new
>> computer that I bought only a couple of weeks ago.  Does anybody have
>> any ideas on what this might be, or what I could do to try to figure it
>> out?
>> 
>> Thanks in advance for any ideas.
>> 
>
>
> Not to belabour the obvious, but have you booted the machine with Linux
> to see if USB works there?  (Just to avoid the possibility that you
> have bad hardware.)

I did verify that it works on Linux and everything worked properly
there.

-- 
Carl Johnson		carlj at peak.org