$ glasgow -vv voltage A 3.3
D: g.device.hardware: found revC2 device with serial C2-20220814T174353Z
T: g.device.hardware: USB: CONTROL OUT type=0x40 request=0x16 value=0x0000 index=0x0001 data=<00007c15> (submit)
T: g.device.hardware: USB: CONTROL OUT (completed)
T: g.device.hardware: USB: CONTROL IN type=0x40 request=0x12 value=0x0000 index=0x0000 length=1 (submit)
T: g.device.hardware: USB: CONTROL IN data=<00> (completed)
T: g.device.hardware: USB: CONTROL IN type=0x40 request=0x17 value=0x0000 index=0x0000 length=1 (submit)
T: g.device.hardware: USB: CONTROL IN data=<00> (completed)
T: g.device.hardware: USB: CONTROL OUT type=0x40 request=0x14 value=0x0000 index=0x0001 data=<e40c> (submit)
T: g.device.hardware: USB: CONTROL OUT (completed)
T: g.device.hardware: USB: CONTROL IN type=0x40 request=0x12 value=0x0000 index=0x0000 length=1 (submit)
T: g.device.hardware: USB: CONTROL IN data=<01> (completed)
T: g.device.hardware: USB: CONTROL OUT type=0x40 request=0x14 value=0x0000 index=0x0001 data=<0000> (submit)
T: g.device.hardware: USB: CONTROL OUT (completed)
T: g.device.hardware: USB: CONTROL IN type=0x40 request=0x12 value=0x0000 index=0x0000 length=1 (submit)
T: g.device.hardware: USB: CONTROL IN data=<00> (completed)
E: g.cli: cannot set I/O port(s) A voltage to 3.3 V