Hi Olaf,
Yes, I tried running scanimage -L when logged on as root with the same result i.e. "No scanners were identified...." Since my original post I made an observation which may or may not be relevant. From the Centos 7.0 man page for plustek, https://www.unix.com/man-page/centos/5/sane-plustek/ "FILES /etc/sane.d/plustek.conf The backend configuration file /usr/lib64/sane/libsane-plustek.a The static library implementing this backend. /usr/lib64/sane/libsane-plustek.so The shared library implementing this backend (present on systems that support dynamic loading)." On my system I'm seeing /etc/sane.d/plustek.conf but /usr/lib64/sane is empty. I've seen something somewhere that says if sane-find-scanner finds the scanner but scanimage -L does not it means that you don't have the right backend for the scanner installed. Could a missing library file be the culprit? I should mention that, if it is not already obvious, I'm a relative Linux newbie. As always, any suggestions appreciated. -----Original Message----- From: Olaf Meeuwissen [mailto:[email protected]] Sent: Saturday, October 27, 2018 11:40 PM To: Terry Spearman Cc: [email protected] Subject: Re: [sane-devel] sane-find-scanner finds Canon Canoscan N24OU, scanimage -L does not Hi Terry, Terry Spearman writes: > I'm running under Centos 7 (kernel 3.10.0-862.14.4.e17x86_64) and the > version of SANE I downloaded from the Centos repository via yum install. > When I run sane-find-scanner -v -v it tells me "found USB scanner > (vendor=0x0a9 [Canon], product= 0x220e [CanoScan] at libusb:001:002", > but, after checking several possibilities, says: <Couldn't determine > the type of USB chip (result from sane-backends 1.0.24)>. Device reported as completely supported with 1.0.24, so should work. > Running scanimage -L tells me "No scanners were identified.....". > [...] > I'm pretty much out of ideas. Any and all suggestions gratefully > received Have you tried with root permissions? The user trying to scan needs read and write access to the device. Hope this helps, -- Olaf Meeuwissen, LPIC-2 FSF Associate Member since 2004-01-27 GnuPG key: F84A2DD9/B3C0 2F47 EA19 64F4 9F13 F43E B8A4 A88A F84A 2DD9 Support Free Software https://my.fsf.org/donate Join the Free Software Foundation https://my.fsf.org/join
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