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Old 11-13-2010, 12:03 PM   #1
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racagalro doesn't litterracagalro doesn't litter
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Join Date: Nov 2010
Device: cooler
Pocketbook free SDK in Cooler ereader

I've made some test in running Pockebook free SDK in a Cooler ereader. I succeded partially but now I need some help.

First, let me explain how I did it.
Before I begin I have to say I'm not running Cooler firmware in my box, I'm running Booq firmware instead but I think this is not relevant as both are based on the same Netronix EB600 original software.

This firmware comes with a scripts that allows to run a personal script at boot time. I discover this when I found browsing the Internet that it is used by kewler and skinmod scripts in order to change themes in the Cooler box.

I exploit this same trick to run the SDK example in my box. First I compiled the program for ARM processor using the SDK. As far as the program uses and this library is not in the original Netronix firmware I put it also in the directory and used LD_LIBRARY_PATH to be sure it is used by the program. I do the same with The rest of dynamic libraries needed by were provided by the Netronix software.

The program executed but fails because cannot find devices pvi_ioc, ebr_adc and inkdrv. I found in Openinkpot web site a listing of Pocketbook filesystem and saw that pvi_io and pvio_ioc has the same major and minor, also with adc and ebr_adc, also with inkdrv and fb0. As far as these drivers where in Netronix firmware I created those needed by with the same major/minor as they have in Netronix firmware. And it worked.

Finally, the program failed because some fonts from /ebrmain were not found. So, I copied the whole ebrmain directory from SDK to the Cooler flash and linked it to the right pathname. It worked fine, and I could see the greyed squares of in the Cooler screen.

This is the good part of the history. However, there is a problem which halting me right now: the press of any of the keys of the box is not detected by the

I made also this same test with the more completed inkdemo example. Same result: Pressing of any of the keys is not detected by the program.

I need some help about this subject. Which of the three devices (pvi_io, adc or fb0) used by is responsible of detecting the pressing of a key and to pass it to the library? I'm guessing that the drivers provided by Netronix are good for but maybe is not so and differences are high enough to avoid compatibility.

How can I go further. Anyone there can help me?

Find here after the listing s of the scripts I'm using.

# kewl-er backdoor script for the Cool-ER reader

if [ -e /mnt/flash/ ]; then
sh /mnt/flash/

#if [ -e /mnt/flash/.plugins/ ]; then
# sh /mnt/flash/.plugins/


/bin/led 2 &


export LD_LIBRARY_PATH=/mnt/flash

# This is a security line in order to avoid execution in followings boots
mv /mnt/flash/ /mnt/flash/backdoor_sh

# I create the devices
mknod -m 660 /dev/pvi_ioc c 10 190
mknod -m 660 /dev/ebr_adc c 10 132
mknod -m 660 /dev/einkdrv c 29 0
ls -l /dev|grep pvi > /mnt/flash/lsdev.out
ls -l /dev|grep adc >> /mnt/flash/lsdev.out
ls -l /dev|grep eink >> /mnt/flash/lsdev.out

# Create the links and copy config files
rm -f /ebrmain
rm -f /mnt/ext1/ext1
ln -s /mnt/flash/ebrmain /ebrmain >> /mnt/flash/lsdev.out
ln -s /mnt/flash/ext1 /mnt/ext1 >> /mnt/flash/lsdev.out
cp /mnt/flash/ext1/test.cfg /mnt/ext1/test.cfg >> /mnt/flash/lsdev.out
df >> /mnt/flash/lsdev.out
ls -lR /ebrmain >> /mnt/flash/lsdev.out
ls -lR /mnt/ext1 >> /mnt/flash/lsdev.out
hwclock -s

# Run the program
/mnt/flash/ > $logPath 2>&1 &

# Security code to kill the program in case of problems
sleep 30

killall led

Last edited by racagalro; 11-13-2010 at 12:09 PM.
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booq, cooler, free, pocketbook, sdk

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