I'm not quite sure if this problem lies in gphoto2, canon firmware,
linux-usb, or my misconfig.... I am completely stumped and I hope
someone can shed some light on this.
I have a Canon A530. I've written some udev rules to automagically
download the camera on plug in.
The rules are:
# udev rules file for my_cameras
ACTION!="add", GOTO="cameras_rules_end"
SUBSYSTEM=="usb_device", GOTO="cameras_rules_real"
SUBSYSTEM=="usb", GOTO="cameras_rules_real"
BUS=="scsi", GOTO="cameras_rules_mass"
LABEL="cameras_rules_real"
#Nikon D50 USB mass storage device
SYSFS{product}=="Canon Digital Camera", SYSFS{manufacturer}=="Canon
Inc.", MODE="0660", GROUP="plugdev", ENV{camera}="Canon_A530",
ENV{type}="ptp", SYMLINK+="camera/Canon_A530",
RUN+="/usr/local/bin/download_camera", OPTIONS+="last_rule"
GOTO="cameras_rules_end"
LABEL="cameras_rules_mass"
SYSFS{model}=="D50 ", SYSFS{vendor}=="NIKON ",
MODE="0660", GROUP="plugdev", ENV{camera}="Nikon_D50",
ENV{type}="mass_storage", SYMLINK+="camera/Nikon_D50",
RUN+="/usr/local/bin/download_camera", OPTIONS+="last_rule"
LABEL="cameras_rules_end"
Now those work; the camera is detected and the download script is executed.
The problem is that it is executed 4 times, then a pause, then one more
time, and all fail.
Now, if, after that, I run gphoto2 --list-files from the command line,
the script is executed again in the same 4 and one pattern, and the
download goes through.
My script is twofold:
The rules invoke the download_camera script, which in turns calls the
following script:
#!/bin/sh
logger $$ downloading $type camera $camera
sleep 15
logger $$ done sleeping
case $type in
"mass_storage" )
dest_dir=/home/nfs/pictures/$camera/`date +%Y-%m-%d_%H.%M`
mkdir -p $dest_dir
mkdir -p /mnt/${camera}
mount /dev/camera/${camera} /mnt/$camera
files=`find /mnt/${camera} -name "*.[Jj][Pp][Gg]"`
for file in $files ; do mv $file $dest_dir ; done
;;
"ptp" ) #we can only do this in chunks of 20
logger $$ getting files off ptp camera $camera
dest_dir=/home/nfs/pictures/$camera/`date +%Y-%m-%d_%H.%M`
mkdir -p $dest_dir
cd $dest_dir
logger $$ iter
iter=$(( `gphoto2 --debug --list-files | grep -c ^# ` / 10))
if [[ $? != 0 ]] ; then exit 1 ; fi
logger $$ rem
rem=$(( `gphoto2 --list-files | grep -c ^# ` % 10))
if [[ $? != 0 ]] ; then exit 1 ; fi
logger $$ for
for (( idx=1 ; $? == 0 && idx <= $(($iter*10)); idx+=10 )) ; do
echo getting files $idx-$(($idx+9))
gphoto2 --get-file $idx-$(($idx+9)) --force-overwrite \
&& gphoto2 --delete-file $idx-$(($idx+9)) --recurse \
# || exit 1
done
gphoto2 --get-file $idx-$(($idx+$rem-1)) --force-overwrite \
&& gphoto2 --delete-file $idx-$(($idx+$rem-1)) --recurse
;;
esac
Here's a typical run:
Jan 28 18:27:32 dionysus kernel: usb 5-8: new high speed USB device
using ehci_
cd and address 39
Jan 28 18:27:32 dionysus kernel: usb 5-8: configuration #1 chosen from 1
choice
Jan 28 18:27:32 dionysus logger: 30808 got ptp camera Canon_A530
Jan 28 18:27:32 dionysus logger: 30811 downloading ptp camera Canon_A530
Jan 28 18:27:32 dionysus logger: 30819 got ptp camera Canon_A530
Jan 28 18:27:32 dionysus logger: 30821 downloading ptp camera Canon_A530
Jan 28 18:27:32 dionysus logger: 30818 got ptp camera Canon_A530
Jan 28 18:27:32 dionysus logger: 30825 downloading ptp camera Canon_A530
Jan 28 18:27:32 dionysus logger: 30817 got ptp camera Canon_A530
Jan 28 18:27:32 dionysus logger: 30829 downloading ptp camera Canon_A530
Jan 28 18:27:47 dionysus logger: 30811 done sleeping
Jan 28 18:27:47 dionysus logger: 30811 getting files off ptp camera
Canon_A530
Jan 28 18:27:47 dionysus logger: 30811 iter
Jan 28 18:27:47 dionysus logger: 30821 done sleeping
Jan 28 18:27:47 dionysus logger: 30821 getting files off ptp camera
Canon_A530
Jan 28 18:27:47 dionysus logger: 30821 iter
Jan 28 18:27:47 dionysus logger: 30825 done sleeping
Jan 28 18:27:47 dionysus logger: 30829 done sleeping
Jan 28 18:27:47 dionysus logger: 30829 getting files off ptp camera
Canon_A530
Jan 28 18:27:47 dionysus logger: 30829 iter
Jan 28 18:27:48 dionysus logger: 30808 exit status 1
Jan 28 18:27:48 dionysus logger: 30825 getting files off ptp camera
Canon_A530
Jan 28 18:27:48 dionysus logger: 30825 iter
Jan 28 18:27:48 dionysus logger: 30819 exit status 1
Jan 28 18:27:48 dionysus logger: 30817 exit status 1
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