PRS-500 reverse engineering the Reader USB protocol - Page 12

kovidgoyal · 05-13-2007, 12:19 AM

Released 0.3.27 with BASH completion support for prs500 etc.

jkorman · 05-26-2007, 02:35 PM

Have a problem! Installed libprs, didn't appear to be any problems. Program starts up fine but doesn't find my reader.

I've tried the following from the command line

prs500 info

It reports "Unable to find SONY Reader. Is it connected?"

The Sony CONNECT software read/writes fine.

For info I'm running WinXP Pro.

Thanks, Jim

kovidgoyal · 05-26-2007, 02:48 PM

Try uninstalling the connect USB driver first then re-installing libprs500. Note you only need to uninstall the driver not the full software.

jkorman · 05-26-2007, 09:27 PM

Got libprs talking to my Reader

....but,

I ended up having to

1. completely uninstall the Connect software
2. uninstall the libprs software
3. restart windows,
4. reinstall libprs
5. For windows to find the drivers I had to point to your \driver directory

Then it worked.

Also the instructions you give on the wiki don't match up after "Windows has found new hardware", that's where I had to go to your directory.

Jim

kovidgoyal · 05-26-2007, 09:53 PM

Hmm updated the wiki

jkorman · 05-27-2007, 06:17 PM

Kovid, Thanks for your help...and for authoring libprs.

Since I'm not planning on buying any "content" from Sony, I think I'll stay
with libprs.

Jim

Hadrien · 05-28-2007, 02:21 PM

Well, it's pretty strange: libprs500 used to work fine and now I get the "Unable to find..." message too.

Connect Software still work though.

I was trying to use libprs500 with an early version of our sync software for Feedbooks...

kovidgoyal · 05-28-2007, 02:28 PM

Try uninstalling the connect software (driver part) , uninstalling libprs500, rebooting, re-installing libprs500

Hadrien · 05-28-2007, 03:00 PM

Quote:

Originally Posted by kovidgoyal

Try uninstalling the connect software (driver part) , uninstalling libprs500, rebooting, re-installing libprs500

Instead of uninstalling and rebooting I went to the device manager, selected the device and "update the driver" then manually selected the driver and it worked.

I don't really understand why it stopped working though, I was already using this with a .bat file. It works fine with the alpha of our software: it downloaded and sent to the reader all of my subscriptions.

kovidgoyal · 05-28-2007, 03:41 PM

Did it stop working after an update? I changed the way the driver is registered in windows a few weeks back.

Hadrien · 05-28-2007, 03:49 PM

Quote:

Originally Posted by kovidgoyal

Did it stop working after an update? I changed the way the driver is registered in windows a few weeks back.

I updated libprs500 in order to test your new features. Might be the reason why it stopped working.

kovidgoyal · 05-28-2007, 04:07 PM

That would be it. The old driver was designed to work on computers where the connect s/w was already installed. The new one works even if it isn't. Downside of that is that if the Connect software is already installed then windows needs to be told to use the libprs500 driver.

Hadrien · 05-28-2007, 04:10 PM

Quote:

Originally Posted by kovidgoyal

That would be it. The old driver was designed to work on computers where the connect s/w was already installed. The new one works even if it isn't. Downside of that is that if the Connect software is already installed then windows needs to be told to use the libprs500 driver.

You should maybe detect if the Connect software is already installed or not, and then register the driver in a different way for each case.

I can easily recreate the situation where libprs500 stopped working if you'd like to try a few stuff.

kovidgoyal · 05-28-2007, 05:29 PM

Uploaded 0.3.43 that should correctly install the driver. Can you check and get back to me?

Hadrien · 05-28-2007, 05:32 PM

Quote:

Originally Posted by kovidgoyal

Uploaded 0.3.43 that should correctly install the driver. Can you check and get back to me?

Went back to "not working" situation, uninstalled the old libprs500, installed the new one and it worked.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
KDK Reverse Engineering - For Those who Cannot wait...	DairyKnight	Kindle Developer's Corner	0	05-14-2010 12:29 AM
Reverse-engineering the .IMP format	nrapallo	IMP	23	02-12-2009 01:44 PM
Reverse engineering the Cybook hard-/software	srml	Gen3 Developer's Corner	8	07-07-2008 04:27 PM
PC sync protocol	dumky	Which one should I buy?	2	01-04-2008 01:33 PM
Introduction to Reverse Engineering Software	Colin Dunstan	Deals and Resources (No Self-Promotion or Affiliate Links)	0	05-25-2004 11:31 AM

05-13-2007, 12:19 AM	#166
kovidgoyal creator of calibre Posts: 45,367 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Released 0.3.27 with BASH completion support for prs500 etc.

05-26-2007, 02:35 PM	#167
jkorman Junior Member Posts: 3 Karma: 10 Join Date: Feb 2007 Device: PRS-500	Have a problem! Installed libprs, didn't appear to be any problems. Program starts up fine but doesn't find my reader. I've tried the following from the command line prs500 info It reports "Unable to find SONY Reader. Is it connected?" The Sony CONNECT software read/writes fine. For info I'm running WinXP Pro. Thanks, Jim

05-26-2007, 02:48 PM	#168
kovidgoyal creator of calibre Posts: 45,367 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Try uninstalling the connect USB driver first then re-installing libprs500. Note you only need to uninstall the driver not the full software.

05-26-2007, 09:27 PM	#169
jkorman Junior Member Posts: 3 Karma: 10 Join Date: Feb 2007 Device: PRS-500	Got libprs talking to my Reader ....but, I ended up having to 1. completely uninstall the Connect software 2. uninstall the libprs software 3. restart windows, 4. reinstall libprs 5. For windows to find the drivers I had to point to your \driver directory Then it worked. Also the instructions you give on the wiki don't match up after "Windows has found new hardware", that's where I had to go to your directory. Jim

05-26-2007, 09:53 PM	#170
kovidgoyal creator of calibre Posts: 45,367 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Hmm updated the wiki

05-27-2007, 06:17 PM	#171
jkorman Junior Member Posts: 3 Karma: 10 Join Date: Feb 2007 Device: PRS-500	Kovid, Thanks for your help...and for authoring libprs. Since I'm not planning on buying any "content" from Sony, I think I'll stay with libprs. Jim

05-28-2007, 02:28 PM	#173
kovidgoyal creator of calibre Posts: 45,367 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Try uninstalling the connect software (driver part) , uninstalling libprs500, rebooting, re-installing libprs500

05-28-2007, 03:41 PM	#175
kovidgoyal creator of calibre Posts: 45,367 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Did it stop working after an update? I changed the way the driver is registered in windows a few weeks back.

05-28-2007, 04:07 PM	#177
kovidgoyal creator of calibre Posts: 45,367 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That would be it. The old driver was designed to work on computers where the connect s/w was already installed. The new one works even if it isn't. Downside of that is that if the Connect software is already installed then windows needs to be told to use the libprs500 driver.

05-28-2007, 05:29 PM	#179
kovidgoyal creator of calibre Posts: 45,367 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Uploaded 0.3.43 that should correctly install the driver. Can you check and get back to me?

Advert

Advert