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[linux_var] scanner xsane udev.... e chi piu' ne ha piu' ne metta
Ciao a tutti
Lo scanner della mia stampante all in one HP Deskjet F380
ha misteriosamente smesso di funzionare
Quello che mi succede e' questo.
Da utente normale lancio xsane ma si lamenta dicendo che non trova il
device.
Provo allora con scanimage:
$ scanimage -L
No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
provo lo stesso comando da root:
# scanimage -L
device `hpaio:/usb/Deskjet_F300_series?serial=CN69DG62C204KH' is a
Hewlett-Packard Deskjet_F300_series all-in-one
In questo caso funziona e riconosce il device, quindi immagino sia tutto
un problema di permessi.
Con l'aiuto di Buccia identifichiamo i device corrispondenti
# ls -al /dev/usbdev*
crw-rw---- 1 root root 189, 0 2008-09-29 22:26 /dev/usbdev1.1
crw-rw---- 1 root root 250, 0 2008-09-29 22:26 /dev/usbdev1.1_ep00
crw-rw---- 1 root root 250, 1 2008-09-29 22:26 /dev/usbdev1.1_ep81
crw-rw---- 1 root root 189, 2 2008-09-29 22:26 /dev/usbdev1.3
crw-rw---- 1 root root 250, 4 2008-09-29 22:26 /dev/usbdev1.3_ep00
crw-rw---- 1 root root 250, 6 2008-09-29 22:26 /dev/usbdev1.3_ep02
crw-rw---- 1 root root 250, 5 2008-09-29 22:26 /dev/usbdev1.3_ep81
crw-rw---- 1 root root 189, 128 2008-09-29 22:26 /dev/usbdev2.1
crw-rw---- 1 root root 250, 2 2008-09-29 22:26 /dev/usbdev2.1_ep00
crw-rw---- 1 root root 250, 3 2008-09-29 22:26 /dev/usbdev2.1_ep81
crw-rw---- 1 root root 189, 130 2008-09-29 21:27 /dev/usbdev2.2
crw-rw---- 1 root root 250, 7 2008-09-29 21:27 /dev/usbdev2.2_ep00
crw-rw---- 1 root root 250, 8 2008-09-29 21:27 /dev/usbdev2.2_ep01
crw-rw---- 1 root root 250, 11 2008-09-29 21:27 /dev/usbdev2.2_ep03
crw-rw---- 1 root root 250, 14 2008-09-29 21:27 /dev/usbdev2.2_ep07
crw-rw---- 1 root root 250, 9 2008-09-29 21:27 /dev/usbdev2.2_ep81
crw-rw---- 1 root root 250, 10 2008-09-29 21:27 /dev/usbdev2.2_ep82
crw-rw---- 1 root root 250, 12 2008-09-29 21:27 /dev/usbdev2.2_ep83
crw-rw---- 1 root root 250, 13 2008-09-29 21:27 /dev/usbdev2.2_ep84
crw-rw---- 1 root root 250, 15 2008-09-29 21:27 /dev/usbdev2.2_ep87
crw-rw---- 1 root root 250, 16 2008-09-29 21:27 /dev/usbdev2.2_ep88
Quelli che mi interessano sono quelli della serie usbdev2.2*, infatti se
stacco il cavo usb questi file spariscono MA se lo ricollego la serie
usbdev2.2* diventa usbdev2.3
# ls -al /dev/usbdev*
crw-rw---- 1 root root 189, 0 2008-09-29 22:26 /dev/usbdev1.1
crw-rw---- 1 root root 250, 0 2008-09-29 22:26 /dev/usbdev1.1_ep00
crw-rw---- 1 root root 250, 1 2008-09-29 22:26 /dev/usbdev1.1_ep81
crw-rw---- 1 root root 189, 2 2008-09-29 22:26 /dev/usbdev1.3
crw-rw---- 1 root root 250, 4 2008-09-29 22:26 /dev/usbdev1.3_ep00
crw-rw---- 1 root root 250, 6 2008-09-29 22:26 /dev/usbdev1.3_ep02
crw-rw---- 1 root root 250, 5 2008-09-29 22:26 /dev/usbdev1.3_ep81
crw-rw---- 1 root root 189, 128 2008-09-29 22:26 /dev/usbdev2.1
crw-rw---- 1 root root 250, 2 2008-09-29 22:26 /dev/usbdev2.1_ep00
crw-rw---- 1 root root 250, 3 2008-09-29 22:26 /dev/usbdev2.1_ep81
crw-rw---- 1 root root 189, 130 2008-09-29 21:27 /dev/usbdev2.3
crw-rw---- 1 root root 250, 7 2008-09-29 21:27 /dev/usbdev2.3_ep00
crw-rw---- 1 root root 250, 8 2008-09-29 21:27 /dev/usbdev2.3_ep01
crw-rw---- 1 root root 250, 11 2008-09-29 21:27 /dev/usbdev2.3_ep03
crw-rw---- 1 root root 250, 14 2008-09-29 21:27 /dev/usbdev2.3_ep07
crw-rw---- 1 root root 250, 9 2008-09-29 21:27 /dev/usbdev2.3_ep81
crw-rw---- 1 root root 250, 10 2008-09-29 21:27 /dev/usbdev2.3_ep82
crw-rw---- 1 root root 250, 12 2008-09-29 21:27 /dev/usbdev2.3_ep83
crw-rw---- 1 root root 250, 13 2008-09-29 21:27 /dev/usbdev2.3_ep84
crw-rw---- 1 root root 250, 15 2008-09-29 21:27 /dev/usbdev2.3_ep87
crw-rw---- 1 root root 250, 16 2008-09-29 21:27 /dev/usbdev2.3_ep88
WTF?!
I permessi sono comunque sbagliati, provo a cambiarli ma senza esito
positivo:
#chown root:scanner /dev/usbdev*
$scanimage -L
No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
Sono nel gruppo scanner
Questa operazione comunque servirebbe a poco perche' ad ogni boot
vengono rigenerati i device con i permessi originali, quindi la strada è
un altra
A questo punto i miei 37.7 di febbre hanno la meglio e io cedo.
Idee? Proposte? Aspirine?
by aL
P.S.
E' abbastanza furstrante effettuare una ricerca su google con 'Slackware
xsane HP Deskjet F380' e trovare come primo risultato il *MIO* post sul
sito del linuxvar dove scrivo che funziona perfettamente.
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