I'm pretty sure that my printing problem is really a USB problem, so I looked
for some USB specific log and didn't find one. Then I looked for some utility
to debug what's happening to USB ("linux debug usb" on GOOGLE), but all I
found seemed to be tools for developers (for instance to reverse engineer USB
Windows device drivers). Can anyone suggest something to try and see what's
going on here?
BTW - I've included more info below. I **think** everything looks normal, but
maybe someone sees something wrong here.
the following lines are from dmesg
usb-uhci.c: USB UHCI at I/O 0xd000, IRQ 10
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
usb-uhci.c: v1.275:USB Universal Host Controller Interface driver
usbdevfs: remount parameter error
usb.c: registered new driver usblp
printer.c: v0.11: USB Printer Device Class driver
hub.c: USB new device connect on bus1/1, assigned device number 2
hub.c: USB hub found
hub.c: 4 ports detected
hub.c: USB new device connect on bus1/2, assigned device number 3
usb.c: USB device 3 (vend/prod 0x55f/0x6) is not claimed by any active driv
er.
hub.c: USB new device connect on bus1/1/2, assigned device number 4
printer.c: usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0
x04B8 pid 0x0005
the following lines are from /var/log/kernel/info
Dec 28 20:22:59 shlomo1 kernel: usb.c: registered new driver usbdevfs
Dec 28 20:22:59 shlomo1 kernel: usb.c: registered new driver hub
Dec 28 20:22:59 shlomo1 kernel: usb-uhci.c: $Revision: 1.275 $ time 18:49:04
Sep 20 2002
Dec 28 20:22:59 shlomo1 kernel: usb-uhci.c: High bandwidth mode enabled
Dec 28 20:22:59 shlomo1 kernel: PCI: Found IRQ 10 for device 00:07.2
Dec 28 20:22:59 shlomo1 kernel: PCI: Sharing IRQ 10 with 00:0b.0
Dec 28 20:22:59 shlomo1 kernel: PCI: Sharing IRQ 10 with 00:0c.0
Dec 28 20:22:59 shlomo1 kernel: usb-uhci.c: USB UHCI at I/O 0xd000, IRQ 10
Dec 28 20:22:59 shlomo1 kernel: usb.c: new USB bus registered, assigned bus
number 1
Dec 28 20:22:59 shlomo1 kernel: hub.c: USB hub found
Dec 28 20:22:59 shlomo1 kernel: hub.c: 2 ports detected
Dec 28 20:22:59 shlomo1 kernel: usb-uhci.c: v1.275:USB Universal Host
Controller Interface driver
Dec 28 20:22:59 shlomo1 kernel: usb.c: registered new driver usblp
Dec 28 20:22:59 shlomo1 kernel: printer.c: v0.11: USB Printer Device Class
driver
Dec 28 20:22:59 shlomo1 kernel: hub.c: USB new device connect on bus1/1,
assigned device number 2
Dec 28 20:22:59 shlomo1 kernel: hub.c: USB hub found
Dec 28 20:22:59 shlomo1 kernel: hub.c: 4 ports detected
Dec 28 20:22:59 shlomo1 kernel: hub.c: USB new device connect on bus1/2,
assigned device number 3
Dec 28 20:22:59 shlomo1 kernel: hub.c: USB new device connect on bus1/1/2,
assigned device number 4
Dec 28 20:22:59 shlomo1 kernel: printer.c: usblp0: USB Bidirectional printer
dev 4 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0005
Dec 28 20:22:59 shlomo1 kernel: Adding Swap: 128484k swap-space (priority -1)
Dec 28 20:22:59 shlomo1 kernel: Adding Swap: 248968k swap-space (priority -2)
Dec 28 20:22:59 shlomo1 kernel: usb.c: registered new driver usbscanner
Dec 28 20:22:59 shlomo1 kernel: scanner.c: 0.4.6:USB Scanner Driver
the following lines are from /proc/bus/usb
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=04b8 ProdID=0005 Rev= 1.00
S: Manufacturer=EPSON
S: Product=USB Printer
S: SerialNumber=HK0120002171047350
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
here are my usb devices
[root@shlomo1 usb]# ls -la /dev/usb
total 0
drwxr-xr-x 1 root root 0 Jan 1 1970 ./
drwxr-xr-x 1 root root 0 Jan 1 1970 ../
crw-rw---- 1 lp sys 180, 0 Jan 1 1970 lp0
crw------- 1 solomon root 180, 48 Jan 1 1970 scanner0
--
Shlomo Solomon
http://come.to/shlomo.solomon
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