Wild Wizard wrote:
> Nothing to do with /dev, cups no longer uses /dev for usb
> printers.
> Run '/usr/lib/cups/backend/usb' to get the URI for the usb
> printer, or just select the printer from the web interface
> when you set it up.

I solved in a very simple way, as from my above post.
In any case, if I run /usr/lib/cups/backend/usb I receive only:
----------------------------------------------------
root@darkstar:/usr/lib/cups/backend# ./usb
direct usb:/dev/usb/lp0 "Unknown" "USB Printer #1"
direct usb:/dev/usb/lp1 "Unknown" "USB Printer #2"
direct usb:/dev/usb/lp2 "Unknown" "USB Printer #3"
direct usb:/dev/usb/lp3 "Unknown" "USB Printer #4"
direct usb:/dev/usb/lp4 "Unknown" "USB Printer #5"
direct usb:/dev/usb/lp5 "Unknown" "USB Printer #6"
direct usb:/dev/usb/lp6 "Unknown" "USB Printer #7"
direct usb:/dev/usb/lp7 "Unknown" "USB Printer #8"
direct usb:/dev/usb/lp8 "Unknown" "USB Printer #9"
direct usb:/dev/usb/lp9 "Unknown" "USB Printer #10"
direct usb:/dev/usb/lp10 "Unknown" "USB Printer #11"
direct usb:/dev/usb/lp11 "Unknown" "USB Printer #12"
direct usb:/dev/usb/lp12 "Unknown" "USB Printer #13"
direct usb:/dev/usb/lp13 "Unknown" "USB Printer #14"
direct usb:/dev/usb/lp14 "Unknown" "USB Printer #15"
direct usb:/dev/usb/lp15 "Unknown" "USB Printer #16"
----------------------------------------------------
That is the same situation if I try to configure
the printer by cups via web. I configured it by CUPS
and after by hand edited /etc/cups/printers.conf
setting DeviceURI usb:/dev/lp0 instead of usb:/dev//usb/lp0.

MS

Mauro Sacchetto <mauro.sacchetto@alice.it> wrote:
: I open a new tread for this argument. I have Slackware current
: with udev without hotplug. All devices work fine, except the
: printer, a USB HP Deskjet 6122. The printer is correctly identified
: (lsusb -v) and the driver is charges (lsmod -v). In /dev
: /dev/lp0 is regularly created. I configure the printer by CUPS
: via browser, but when I try to print, CUPS tells me:
: ================================================== ====
: HP DeskJet 6122 Foomatic/hpijs (recommended)
: Description:
: Location: locale
: Printer State: idle, accepting jobs.
: "Printer not connected; will retry in 30 seconds..."
: Device URI: usb:/dev/usb/lp0
: ================================================== ====
: Instead, another USB device, the scanner, works regularly.
: Any suggestion?

Run these following commands as root and report back what you get:

ls -l /dev/usb/lp0
lsmod

I suspect that you are missing a module needed to use a USB printer, but
you also only said that /dev/lp0 existed, which is not the same as the
device /dev/usb/lp0. The device /dev/lp0 is for the first parallel printer.
The device /dev/usb/lp0 is for the first USB printer. Your device URI is
correct for a USB printer. I know another poster said it wasn't, but this
is not true. There are two URIs you can use for USB printers, the direct
device (/dev/usb/lp0) and a symbolic URI (what the other poster gave). I
prefer using the direct device (/dev/usb/lp0) on my printer because it does
not properly wake up from sleep mode if I use the symbollic URI.

Wild Wizard wrote:
> cups no longer uses /dev for usb
> printers.

Funny...I managed to lose /dev/usb/lp0 and couldn't print (using the
-current CUPS) until I recreated it with mknod.

On Wed, 03 May 2006 00:01:56 GMT, Forrest <gmauslander@hotmail.com> wrote:

>Wild Wizard wrote:
>> cups no longer uses /dev for usb
>> printers.
>
>Funny...I managed to lose /dev/usb/lp0 and couldn't print (using the
>-current CUPS) until I recreated it with mknod.

Somewhere, somehow udev is supposed to create that devnode on demand,
that's the plan... Dunno how to do it myself, suggest looking through
the notes in Changelog and Piter's stuff.

And: http://www.kernel.org/pub/linux/util...plug/udev.html

Grant.
--
Memory fault -- brain fried

On 2006-05-03, Grant <bugsplatter@gmail.com> wrote:
> On Wed, 03 May 2006 00:01:56 GMT, Forrest <gmauslander@hotmail.com> wrote:
>
>>Wild Wizard wrote:
>>> cups no longer uses /dev for usb
>>> printers.
>>
>>Funny...I managed to lose /dev/usb/lp0 and couldn't print (using the
>>-current CUPS) until I recreated it with mknod.
>
> Somewhere, somehow udev is supposed to create that devnode on demand,
> that's the plan... Dunno how to do it myself, suggest looking through
> the notes in Changelog and Piter's stuff.


This line should do it:
BUS=="usb", KERNEL=="lp[0-9]*", NAME="usb/%k", GROUP="lp"

RW

--

http://rlworkman.net

On 2006-05-04, Robby Workman <newsgroups@rlworkman.net> wrote:

>
> This line should do it:
> BUS=="usb", KERNEL=="lp[0-9]*", NAME="usb/%k", GROUP="lp"
>
I
t does'nt do it in my case.
Got an Epson Stylus Photo R300 with card reader.
The printer is detected with hotplug.

Installed Piter Punk's udev.

/usr/lib/cups/backend/usb gives:
direct usb:/dev/usb/lp0 "Unknown" "USB Printer #1"
direct usb:/dev/usb/lp1 "Unknown" "USB Printer #2"
etc.

lsusb gives
Bus 005 Device 002: ID 04b8:0803 Seiko Epson Corp.
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

lsusb -v gives:
Bus 005 Device 002: ID 04b8:0803 Seiko Epson Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x04b8 Seiko Epson Corp.
idProduct 0x0803
bcdDevice 1.00
iManufacturer 1 EPSON
iProduct 2 USB2.0 MFP(Hi-Speed)
iSerial 3 MI3P10402200339520
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 55
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 4 USB2.0 MFP(Hi-Speed)
bmAttributes 0xc0
Self Powered
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 5 USB2.0 Mass Storage
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 7 Printer
bInterfaceSubClass 1 Printer
bInterfaceProtocol 2 Bidirectional
iInterface 6 USB2.0 Printer
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0

Is the card reader interfering?
Any hint will be appreciated.
NB
all other apps such as camera, externel disk, NVidia are detected.


--
++++++++++++++++++++++++++++++++
Mike Slack current
email: micder at zeelandnet dot nl
++++++++++++++++++++++++++++++++

On 2006-05-04, Mike <Mike@nospam.invalid> wrote:
> On 2006-05-04, Robby Workman <newsgroups@rlworkman.net> wrote:
>
>>
>> This line should do it:
>> BUS=="usb", KERNEL=="lp[0-9]*", NAME="usb/%k", GROUP="lp"
>>
> I
> t does'nt do it in my case.
> Got an Epson Stylus Photo R300 with card reader.
> The printer is detected with hotplug.
>
> Installed Piter Punk's udev.

Have a look at this page, and to be more specific, item numbers 11,
19, and 20. IIRC, this page is included in the documentation
directory of the udev source.
http://www.reactivated.net/writing_udev_rules.html

RW

--

http://rlworkman.net