#3159: cups libusb permissions
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Reporter: d...@… | Owner: blfs-b...@…
Type: task | Status: new
Priority: normal | Milestone: future
Component: BOOK | Version: SVN
Severity: normal | Keywords:
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Comment(by k...@…):
I saw the thread, but I wasn't in front of a suitable system to compare
it. Now that I am, I think something is missing. In my case, I'm
printing with cups, gutenprint, ghostscript to an epson 360 [usb] using a
module for the usb lp printer. This is on LFS-6.7.
This printer has always loaded usb_storage, which is probably just a
curiosity, but after printing I have
{{{
k...@ac30 ~ $lsmod
Module Size Used by
usblp 10412 0
usb_storage 42679 0
and sys.log shows the following (turned it on, printed, turned it off)
Sep 28 14:49:08 ac30 kernel: usb 1-1: new high speed USB device using
ehci_hcd and address 3
Sep 28 14:49:08 ac30 kernel: scsi5 : usb-storage 1-1:1.0
Sep 28 14:49:08 ac30 kernel: usblp0: USB Bidirectional printer dev 3 if 1
alt 0 proto 2 vid 0x04B8 pid 0x082C
Sep 28 14:49:09 ac30 kernel: scsi 5:0:0:0: Direct-Access EPSON
Stylus Storage 1.00 PQ: 0 ANSI: 2
Sep 28 14:49:09 ac30 kernel: sd 5:0:0:0: Attached scsi generic sg2 type 0
Sep 28 14:49:09 ac30 kernel: sd 5:0:0:0: [sdb] Attached SCSI removable
disk
Sep 28 14:50:19 ac30 kernel: usb 1-1: USB disconnect, address 3
Sep 28 14:50:19 ac30 kernel: usblp0: removed
}}}
I have been vaguely aware of this since Greg KH first mentioned it on lkml
in about April, and at that time I assumed it must be a cups-1.4 issue.
But, as far as I can remember, I *haven't* had to change kernel config or
udev rules, I don't have libusb installed, but I *do* add a udev rule
(24-usblp) to create /dev/usb/lp0, and I add an lp user
LFS _used_ to create that rule when we had our own voluminous rules, but
it seems to have dropped out now we are following upstream in udev.
Funnily enough, I had to add it to my scripts when I was building on CLFS,
and I had assumed the test to see if it was needed would fail - that is,
until I checked it today.
.
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Ticket URL: <http://wiki.linuxfromscratch.org/blfs/ticket/3159#comment:1>
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