Comment # 131 on bug 920937 from Ian Powell

(In reply to Johannes Meixner from comment #130)
> There are no changes regarding the libusb-based 'usb' backend
> between CUPS 2.0.2 and CUPS 2.0.3 and also the CUPS 2.0.3
> /usr/share/doc/packages/cups/CHANGES.txt file does not provide a hint
> that a change in CUPS could be the reason why it now work for you.
> 
> In comment#128 I wrote intentionally "something else" because
> currently I cannot imagine know what could be the actual reason
> why it now works for you.
> 
> My blind guess is some lower-level USB-related software
> like libusb-1_0-0 or the kernel. But from their rpm changelog
> output I cannot imagine whether or not a change therein could
> be the actual reason why it now works for you.
> 
> FYI regarding why "libusb-1_0-0":
> On my 20150630 Tumbleweed system (cf. comment#125) I get
> ---------------------------------------------------------------------------
> # ldd /usr/lib/cups/backend/usb | grep libusb
> libusb-1.0.so.0 => /usr/lib64/libusb-1.0.so.0 (0x00007fcb5c916000)
> 
> # rpm -qf /usr/lib64/libusb-1.0.so.0
> libusb-1_0-0-1.0.19-3.3.x86_64
> ---------------------------------------------------------------------------

here are my versions.
> cat /etc/os-release
NAME=openSUSE
VERSION="20150702 (Tumbleweed)"
VERSION_ID="20150702"

> ldd /usr/lib/cups/backend/usb | grep libusb
libusb-1.0.so.0 => /usr/lib64/libusb-1.0.so.0 (0x00007ffab4420000)

> rpm -qf /usr/lib64/libusb-1.0.so.0
libusb-1_0-0-1.0.19-3.3.x86_64