PRINTER DETECTION
Parallel port printer
lsmod | grep lp
drm_kms_helper 30774 1 radeon
drm 199968 3 radeon,ttm,drm_kms_helper
lp 9336 0
parport 37160 3 ppdev,lp,parport_pc
lsmod | grep ppdev
ppdev 6375 0
parport 37160 3 ppdev,lp,parport_pc
lsmod | grep parport_pc
parport_pc 29958 1
parport 37160 3 ppdev,lp,parport_pc
dmesg | grep par
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.159653] pci 0000:00:14.4: transparent bridge
[ 0.764945] eth0: Tigon3 [partno(BCM95751) rev 4200] (PCI Express) MAC
address 00:16:17:27:6a:09
[ 3.472903] unknown partition table
[ 3.476858] md2: unknown partition table
[ 3.486583] md1: unknown partition table
[ 7.390837] parport_pc 00:09: reported by Plug and Play ACPI
[ 7.390917] parport0: PC-style at 0x378 (0x778), irq 7, dma 3
[PCSPP,TRISTATE,COMPAT,ECP,DMA]
[ 7.467617] ppdev: user-space parallel port driver
[ 7.491003] parport0: Printer, HEWLETT-PACKARD DESKJET 920C
[ 7.491200] lp0: using parport0 (interrupt-driven).
[ 26.739134] nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module
option or
ls -l /dev/lp* /dev/parport*
crw-rw---- 1 root lp 6, 0 2012-02-11 04:28 /dev/lp0
crw-rw---- 1 root lp 99, 0 2012-02-11 04:28 /dev/parport0
ls -l /proc/sys/dev/parport/parport*/autoprobe*
-r--r--r-- 1 root root 0 2012-03-01 00:11
/proc/sys/dev/parport/parport0/autoprobe
-r--r--r-- 1 root root 0 2012-03-01 00:11
/proc/sys/dev/parport/parport0/autoprobe0
-r--r--r-- 1 root root 0 2012-03-01 00:11
/proc/sys/dev/parport/parport0/autoprobe1
-r--r--r-- 1 root root 0 2012-03-01 00:11
/proc/sys/dev/parport/parport0/autoprobe2
-r--r--r-- 1 root root 0 2012-03-01 00:11
/proc/sys/dev/parport/parport0/autoprobe3
sudo cat /proc/sys/dev/parport/parport*/autoprobe*
CLASS:PRINTER;
MODEL:DESKJET 920C;
MANUFACTURER:HEWLETT-PACKARD;
DESCRIPTION:Hewlett-Packard DeskJet 920C;
COMMAND SET:MLC,PCL,PML;
lpinfo -v
network http
network lpd
network ipp
direct scsi
network socket
serial serial:/dev/ttyS0?baud=115200
network beh
direct parallel:/dev/lp0
direct hp:/par/DESKJET_920C?device=/dev/parport0
direct hpfax
/usr/lib/cups/backend/parallel
***NOTHING RETURNED HERE***
sudo /usr/lib/cups/backend/parallel
direct parallel:/dev/lp0 "HP DESKJET 920C" "HP DESKJET 920C LPT #1"
"MFG:HEWLETT-PACKARD;MDL:DESKJET
920C;CMD:MLC,PCL,PML;CLASS:PRINTER;DESCRIPTION:Hewlett-Packard DeskJet
920C;SERN:MY16P671P8BI;VSTATUS:$HB0$NC0,ff,DN,IDLE,CUT,K0,C0,SM,NR,KP078,CP004;VP:0800,FL,B0;VJ:
;" ""
** Changed in: cups (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/943527
Title:
hp deskjet 920c dissapeared, cannot add
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