Flickering connection to UPS (again, but now I'm sure it is Ok under Windows)

[Lev Serebryakov]

  And one more UPS has rock-stable connection and flicker (connect/disconnect loop with period about 3 seconds) on FreeBSD.

  Yes, I've reported this problem already, but then it was decided, that UPS is defective.

  Now, I've checked with 3 different USB debugging tools on Windows 10 notebook, that it doesn't disconnect from Windows host.

  And it flicker on FreeBSD systems.

  Looks like, we need some quirk for this class of devices.

  I could collect logs on FreeBSD and Windows, but I don't know what to compare and where to look.

-- 
// Lev Serebryakov