Re: Nothing in /sys/class/udc

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hi,

Ranran <ranshalit@xxxxxxxxx> writes:
> > A fix for my last comment:
>> > usb device controller should be supported with conga-MA5 (contains
>> > Intel's appolo lake), so I am still not sure why I find /sys/class/udc
>> > empty.
>> > In congatec MA-5 document it is said:
>> > "The conga-MA5 offers six USB 2.0 interfaces on the COM Express
>> > connector including one USB 2.0 Dual Role port. The xHCI host
>> > controller in the SoC complies with USB standard 1.1 and 2.0 with
>> > high-speed, full-speed and low-speed USB signalling. Note USB Dual
>> > Role is only supported under Linux. The port is a standard USB Host
>> > port under Windows."
>> > Maybe some configuration in my .config is missing ? (I enabled all
>> > controllers in device-drivers->usb->usb-> gadget->usb peripheral
>> > control , so I am not sure what is still missing)
>>
>> do you have the PCI device enabled? what do you get with lspci -nnnn ?
>>
>
> Yes, here it is:

it's not. APL's dwc3 ID 0x5aaa. See dwc3-pci.c:

#define PCI_DEVICE_ID_INTEL_APL			0x5aaa

you only have xhci enabled, not dwc3.

-- 
balbi



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