I've gotten most of the way into assembling my Atreus kit, and run into
this difficulty: I can't flash the firmware to check the keyswitches.
I've got a version of qmk building (what appears to be successfully), but
when I try `make dfu` I get `dfu-programmer: no device present.` I started
looking to see if dfu-programmer was the error, and came across this
troubling detail: lsusb doesn't indicate a new device when I plug in the
Atreus-to-be. To confirm, the led on the a-star blinks, and then pulses
when I double-tap the reset-ground connection.
[643146.857895] usb 2-2: new full-speed USB device number 92 using xhci_hcd
[643146.858027] usb 2-2: Device not responding to setup address.
[643147.061656] usb 2-2: Device not responding to setup address.
[643147.264890] usb 2-2: device not accepting address 92, error -71
[643147.264916] usb usb2-port2: unable to enumerate USB device
when the A-star is plugged in.
Am I missing something? Worried I may have gotten a dud a-star.