Ippon Back Power Pro LCD connection flickers

[Lev Serebryakov]

On 22.05.2017 15:05, Hans Petter Selasky wrote:

> Try dumping the traffic using "usbdump -i usbus1 -f 2 " and look for
> completion errors. Might be a bug in the USB firmware of the UPS.
 Looks like here are some errors:

15:20:54.763190 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:20:54.766153 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=4,IVAL=0,ERR=0
15:20:54.766207 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:20:54.770153 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=16,IVAL=0,ERR=0
15:20:54.770254 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:20:54.776387 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0,ERR=0
15:20:54.776651 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:20:55.024886 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=0,SLEN=0,IVAL=100,ERR=TIMEOUT
15:20:56.704142 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:20:56.953067 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=0,SLEN=0,IVAL=100,ERR=TIMEOUT
15:20:56.953149 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:20:56.958305 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0,ERR=0
15:20:58.739302 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:20:58.987908 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=0,SLEN=0,IVAL=100,ERR=TIMEOUT
15:20:58.988036 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:20:58.993234 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0,ERR=0
15:21:00.740259 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:21:00.988887 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=0,SLEN=0,IVAL=100,ERR=TIMEOUT
15:21:00.989073 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:21:00.993259 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0,ERR=0
15:21:02.756039 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:21:03.005075 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=0,SLEN=0,IVAL=100,ERR=TIMEOUT
15:21:03.005899 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:21:03.010298 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0,ERR=0
15:21:04.759518 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:21:05.008882 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=0,SLEN=0,IVAL=100,ERR=TIMEOUT
15:21:05.008963 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:21:05.013332 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0,ERR=0
15:21:06.760996 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:21:07.009989 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=0,SLEN=0,IVAL=100,ERR=TIMEOUT
15:21:07.010080 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:21:07.014364 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0,ERR=0
15:21:08.769240 usbus1.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100
15:21:08.960407 usbus1.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=100,ERR=IOERROR
15:21:13.891574 usbus1.2 SUBM-CTRL-EP=00000000,SPD=LOW,NFR=1,SLEN=8,IVAL=0
15:21:13.893148 usbus1.2
DONE-CTRL-EP=00000000,SPD=LOW,NFR=1,SLEN=0,IVAL=0,ERR=0
15:21:13.893270 usbus1.2 SUBM-CTRL-EP=00000000,SPD=LOW,NFR=1,SLEN=0,IVAL=0
15:21:13.895138 usbus1.2
DONE-CTRL-EP=00000000,SPD=LOW,NFR=1,SLEN=0,IVAL=0,ERR=0
15:21:13.909800 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:21:13.914156 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=20,IVAL=0,ERR=0
15:21:13.914443 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:21:13.917136 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=4,IVAL=0,ERR=0
15:21:13.917161 usbus1.2 SUBM-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=8,IVAL=0
15:21:13.920128 usbus1.2
DONE-CTRL-EP=00000080,SPD=LOW,NFR=2,SLEN=4,IVAL=0,ERR=0

-- 
// Lev Serebryakov