Re: XHCI DbC (debug port) problems

2018-12-21 Thread Tj
On 21/12/2018 16:37, Mathias Nyman wrote: > On 21.12.2018 17:53, Tj wrote: >> On 11/12/2018 14:00, Mathias Nyman wrote: Any advice or experience as to what we might be missing? >>> >>> What does sudo lsusb -v on the host say about the target device? >>> What's the dbc status on the target? you

Re: XHCI DbC (debug port) problems

2018-12-21 Thread Mathias Nyman
On 21.12.2018 17:53, Tj wrote: On 11/12/2018 14:00, Mathias Nyman wrote: Any advice or experience as to what we might be missing? What does sudo lsusb -v on the host say about the target device? What's the dbc status on the target? you did enable it right? (on target,  cat /sys/bus/pci/devices

Re: XHCI DbC (debug port) problems

2018-12-21 Thread Tj
On 11/12/2018 14:00, Mathias Nyman wrote: >> Any advice or experience as to what we might be missing? > > What does sudo lsusb -v on the host say about the target device? > What's the dbc status on the target? you did enable it right? > (on target,  cat /sys/bus/pci/devices/:00:14.0/dbc) Is t

Re: XHCI DbC (debug port) problems

2018-12-11 Thread Mathias Nyman
On 05.12.2018 13:13, Tj wrote: I'm assisting in debugging what appears to be a race condition in I2C code [0] on Intel ComputeStick STK1A32SC [1] devices. As part of that effort we were originally using an external USB<>RS232 adapter and "console=ttyUSB0,115200n8" but that can be extremely slow (