Quando provo a scansionare, usando simple-scan, l'interfaccia utente dice Failed to scan -- Unable to connect to scanner
. Quando lo eseguo dalla riga di comando ottengo:
joel@home:/usr/bin$ simple-scan -d
** (simple-scan:6554): DEBUG: Starting Simple Scan 2.32.0.1, PID=6554
** (simple-scan:6554): DEBUG: Restoring window to 600x400 pixels
** (simple-scan:6554): DEBUG: sane_init () -> SANE_STATUS_GOOD
** (simple-scan:6554): DEBUG: SANE version 1.0.22
** (simple-scan:6554): DEBUG: Requesting redetection of scan devices
** (simple-scan:6554): DEBUG: Processing request
** (simple-scan:6554): DEBUG: Requesting scan at 300 dpi from device '(null)'
** (simple-scan:6554): DEBUG: scanner_scan ("(null)", 300, SCAN_SINGLE)
** (simple-scan:6554): DEBUG: sane_get_devices () -> SANE_STATUS_GOOD
** (simple-scan:6554): DEBUG: Device: name="brother2:bus4;dev1" vendor="Brother" model="MFC-210C" type="USB scanner"
** (simple-scan:6554): DEBUG: Processing request
** (simple-scan:6554): DEBUG: sane_open ("brother2:bus4;dev1") -> SANE_STATUS_IO_ERROR
** (simple-scan:6554): WARNING **: Unable to get open device: Error during device I/O
Cordiali saluti, ho già fatto:
joel@home:~$ sudo chmod a+rwx /dev/bus/usb
joel@home:~$ sudo chmod a+rwx /dev/bus/usb/*
Se corro sotto sudo
:
joel@home:~$ sudo simple-scan
Funziona.
Come posso far funzionare simple-scan senza sudo?
sudo adduser username scanner
e quindi è necessario disconnettersi e riconnettersi affinché l'appartenenza al gruppo venga notata dal sistema operativo.