On 2020-04-17 14:59, Lev Serebryakov wrote:
Cheap Ippon UPS flickers with USB connection when master is FreeBSD CURRENT:
....
Apr 17 15:49:02 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
(disconnected)
Apr 17 15:49:07 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
Apr 17 15:49:21 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
(disconnected)
Apr 17 15:49:26 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
Apr 17 15:49:40 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
(disconnected)
Apr 17 15:49:45 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
Apr 17 15:49:59 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
(disconnected)
Apr 17 15:50:04 gateway kernel: ugen2.2: <PPC Offline UPS> at usbus2
....
It works stable when connected to Windows notebook. Yes, I understand, that
it is different host hardware.
Unfortunately, I can not check other OSes on hardware where it flickers, but
maybe it is possible to set (or add) some quirk on our side?
Hi,
Are you running -stable / -current? If not, try upgrading the kernel
only first.
What does usbconfig say about this device.
Try monitoring the USB traffic:
usbdump -i usbus2 -f 2 -s65536 -vvv
Maybe some bad command triggers the disconnect.
Last resort:
sysctl hw.usb.disable_enumeration=1
Does your device still function?
--HPS
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