USB -Drucker trennen häufig [geschlossen] ⇐ Linux

[Anonymous]

Ich arbeite an einer Software, die an vielen Verkaufspunkten mit Epson -Quittungsdruckern eingesetzt wird. Häufig trennen USB -Drucker die Verbindung, so dass die Betreiber keine andere Wahl haben, um es wieder auszuschalten. Nach der Untersuchung verschwindet der Drucker in diesen Fällen vollständig aus /dev vollständig. Ich weiß nicht wirklich, wo ich nach weiteren Untersuchungen suchen soll, da ich unter Linux nicht viel Wissen habe. Aber hier ist ein Auszug aus/var/log/meldungen, das das Problem zeigt:

Code: Select all

Mar 13 17:24:58 MBCAI22 rsyslogd: -- MARK --
Mar 13 17:42:23 MBCAI22 kernel: [34659.355319] usblp0: nonzero read bulk status received: -84
Mar 13 17:42:23 MBCAI22 kernel: [34659.355329] usblp0: error -84 reading from printer
...
Mar 13 17:42:23 MBCAI22 kernel: [34659.499322] usblp0: nonzero read bulk status received: -84
Mar 13 17:42:23 MBCAI22 kernel: [34659.499329] usblp0: error -84 reading from printer
Mar 13 17:42:23 MBCAI22 kernel: [34659.500305] usb 6-1: USB disconnect, address 2
Mar 13 17:42:23 MBCAI22 kernel: [34659.500441] usblp0: removed
Mar 13 17:42:25 MBCAI22 kernel: [34660.956021] usb 6-1: new full speed USB device using uhci_hcd and address 4
Mar 13 17:42:25 MBCAI22 kernel: [34661.108388] usb 6-1: New USB device found, idVendor=04b8, idProduct=0202
Mar 13 17:42:25 MBCAI22 kernel: [34661.108392] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 13 17:42:25 MBCAI22 kernel: [34661.108396] usb 6-1: Product: TM-H6000IV
Mar 13 17:42:25 MBCAI22 kernel: [34661.108398] usb 6-1: Manufacturer: EPSON
Mar 13 17:42:25 MBCAI22 kernel: [34661.108401] usb 6-1: SerialNumber: 525737462082430000
Mar 13 17:42:25 MBCAI22 kernel: [34661.114465] usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0202
Mar 13 17:42:25 MBCAI22 udev-configure-printer: add /devices/pci0000:00/0000:00:1d.1/usb6/6-1/6-1:1.0/usb/lp0
Mar 13 17:42:25 MBCAI22 udev-configure-printer: parent devpath is /devices/pci0000:00/0000:00:1d.1/usb6/6-1
Mar 13 17:42:25 MBCAI22 udev-configure-printer: invalid or missing IEEE 1284 Device ID
Mar 13 17:42:39 MBCAI22 kernel: [34675.247945] usblp0: nonzero read bulk status received: -84
Mar 13 17:42:39 MBCAI22 kernel: [34675.247953] usblp0: error -84 reading from printer
...
Mar 13 17:42:39 MBCAI22 kernel: [34675.249945] usblp0: nonzero read bulk status received: -84
Mar 13 17:42:39 MBCAI22 kernel: [34675.249954] usblp0: error -84 reading from printer
Mar 13 17:42:39 MBCAI22 kernel: [34675.250252] usb 6-1: USB disconnect, address 4
Mar 13 17:42:39 MBCAI22 kernel: [34675.251072] usblp0: removed
Mar 13 17:42:41 MBCAI22 kernel: [34677.507015] usb 6-1: new full speed USB device using uhci_hcd and address 5
Mar 13 17:42:42 MBCAI22 kernel: [34677.711044] usb 6-1: New USB device found, idVendor=04b8, idProduct=0202
Mar 13 17:42:42 MBCAI22 kernel: [34677.711048] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 13 17:42:42 MBCAI22 kernel: [34677.711051] usb 6-1: Product: TM-H6000IV
Mar 13 17:42:42 MBCAI22 kernel: [34677.711054] usb 6-1: Manufacturer: EPSON
Mar 13 17:42:42 MBCAI22 kernel: [34677.711056] usb 6-1: SerialNumber: 525737462082430000
Mar 13 17:42:42 MBCAI22 kernel: [34677.717118] usblp0: USB Bidirectional printer dev 5 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0202
Mar 13 17:42:42 MBCAI22 udev-configure-printer: add /devices/pci0000:00/0000:00:1d.1/usb6/6-1/6-1:1.0/usb/lp0
Mar 13 17:42:42 MBCAI22 udev-configure-printer: parent devpath is /devices/pci0000:00/0000:00:1d.1/usb6/6-1
Mar 13 17:42:42 MBCAI22 udev-configure-printer: invalid or missing IEEE 1284 Device ID
Mar 13 17:47:22 MBCAI22 kernel: [34958.250047] usb 6-1: USB disconnect, address 5
Mar 13 17:47:22 MBCAI22 kernel: [34958.284142] usblp0: removed
Mar 13 17:47:25 MBCAI22 kernel: [34960.956026] usb 6-1: new full speed USB device using uhci_hcd and address 6
Mar 13 17:47:25 MBCAI22 kernel: [34961.108246] usb 6-1: New USB device found, idVendor=04b8, idProduct=0202
Mar 13 17:47:25 MBCAI22 kernel: [34961.108250] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 13 17:47:25 MBCAI22 kernel: [34961.108254] usb 6-1: Product: TM-H6000IV
Mar 13 17:47:25 MBCAI22 kernel: [34961.108257] usb 6-1: Manufacturer: EPSON
Mar 13 17:47:25 MBCAI22 kernel: [34961.108259] usb 6-1: SerialNumber: 525737462082430000
Mar 13 17:47:25 MBCAI22 kernel: [34961.114318] usblp0: USB Bidirectional printer dev 6 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0202
Mar 13 17:47:25 MBCAI22 udev-configure-printer: add /devices/pci0000:00/0000:00:1d.1/usb6/6-1/6-1:1.0/usb/lp0
Mar 13 17:47:25 MBCAI22 udev-configure-printer: parent devpath is /devices/pci0000:00/0000:00:1d.1/usb6/6-1
Mar 13 17:47:25 MBCAI22 udev-configure-printer: invalid or missing IEEE 1284 Device ID

Ich habe versucht, den Autosuspend -Parameter zu deaktivieren, aber es hat das Problem nicht behoben.