PRS-500 Reader internals - Page 7

NatCh · 10-31-2006, 03:42 PM

And any more word on an Install-the-font-I-select executable file?

igorsk · 10-31-2006, 04:11 PM

Quote:

Originally Posted by kovidgoyal

igor a quick question. File permissions information is transmitted in the last 4 bytes of the packet. However, looking at my USB logs, the last 4 bytes are always zeroed (i.e., the reader sends no information). Looking at ebook.py you seem to assign the file permissions arbitrarily. Is that correct?

Um yeah, I don't use permissions in the listing (maybe I should fix that...). Afair, the USB interface transmits only one flag - "read-only", not the full mask. I will check later.

kovidgoyal · 10-31-2006, 08:44 PM

oh in that case do you know the value of the flag for read only, because all the files I've got logs for have the permissions DWORD set to zero. Alternatively, if you could give me the path to a read-only file, I can generate new logs. I suppose I could just look for any non-zero value but it would be nice to be precise.

Thanks

kovidgoyal · 11-07-2006, 12:21 AM

igor do you know the command number for checking free space on the device?

cb2006 · 11-07-2006, 01:38 AM

I believe it is 0x103.

kovidgoyal · 11-07-2006, 02:00 AM

Hmm i seem to be getting correct free space on /Data with 0x53, but I'll try 0x103 and see.

EDIT:
Looks like 0x103 gives the free space on the reader memory whereas 0x53 gives the free space and total space for a device identified by a path. /Data is the reader mem, but b:/ doesn't seem to work for the SD card. Time to generate new logs I suppose

EDIT2:
0x53 works for the cards as well, just needed to increase the timeout

igorsk · 11-07-2006, 07:05 AM

Here's the full list of commands. I'm a bit busy with something else at the moment, so no parameters description, sorry...

Code:

   0 GetUsbProtocolVersion
   1 ReqUsbConnect
  
  10 FskFileOpen
  11 FskFileClose
  12 FskGetSize
  13 FskSetSize
  14 FskFileSetPosition
  15 FskGetPosition
  16 FskFileRead
  17 FskFileWrite
  18 FskFileGetFileInfo
  19 FskFileSetFileInfo
  1A FskFileCreate
  1B FskFileDelete
  1C FskFileRename
  
  30 FskFileCreateDirectory
  31 FskFileDeleteDirectory
  32 FskFileRenameDirectory
  33 FskDirectoryIteratorNew
  34 FskDirectoryIteratorDispose
  35 FskDirectoryIteratorGetNext
  
  52 FskVolumeGetInfo
  53 FskVolumeGetInfoFromPath
 
  80 FskFileTerminate
 
 100 ConnectDevice
 101 GetProperty
 102 GetMediaInfo
 103 GetFreeSpace
 104 SetTime
 105 DeviceBeginEnd
 106 UnlockDevice
 107 SetBulkSize 
 
 110 GetHttpRequest
 111 SetHttpRespponse
 112 Needregistration
 114 GetMarlinState

 200 ReqDiwStart
 201 SetDiwPersonalkey
 202 GetDiwPersonalkey
 203 SetDiwDhkey
 204 GetDiwDhkey
 205 SetDiwChallengeserver
 206 GetDiwChallengeserver
 207 GetDiwChallengeclient
 208 SetDiwChallengeclient
 209 GetDiwVersion
 20A SetDiwWriteid
 20B GetDiwWriteid
 20C SetDiwSerial
 20D GetDiwModel
 20C SetDiwSerial
 20E GetDiwDeviceid
 20F GetDiwSerial
 210 ReqDiwCheckservicedata
 211 ReqDiwCheckiddata
 212 ReqDiwCheckserialdata
 213 ReqDiwFactoryinitialize
 214 GetDiwMacaddress
 215 ReqDiwTest
 216 ReqDiwDeletekey

 300 UpdateChangemode
 301 UpdateDeletePartition
 302 UpdateCreatePartition
 303 UpdateCreatePartitionWithImage
 304 UpdateGetPartitionSize

kovidgoyal · 11-07-2006, 11:50 AM

Thanks that makes my life a little easier

NatCh · 11-10-2006, 02:47 PM

Hey, all you happy hackers! It's been quiet on this for a while, so I wanted to check if there might be any progress on an Install-the-font-I-select executable file?

For those of us who are a bit less adventurous, you know.

susall · 01-06-2007, 01:05 PM

I can't seem to find a fonts directory under Data, using Igor's tool, on the device. I was wondering where else to look?

susall · 01-06-2007, 01:23 PM

I found the exact directory, using Igor's tool.

/opt/sony/ebook/FONT

porkupan · 02-11-2007, 10:47 PM

Igor,

Any hope the pwrite will work again in the new firmware? Or are you among those smart ones who decided not to update?

igorsk · 02-12-2007, 04:31 AM

It stopped working? That's strange. I would expect them to keep the interface. Anyway, I'll try to have a look into it in the next few days.

porkupan · 02-12-2007, 08:36 AM

Quote:

Originally Posted by igorsk

It stopped working? That's strange. I would expect them to keep the interface. Anyway, I'll try to have a look into it in the next few days.

Well, it seemed to work. But reloading font-updated /opt (Fsk) filesystem made the device pretty much inaccessible (stuck in "Starting up..." screen with blinking yellow light). Ended up having to hard reset (and the documented hard reset didn't work either) to get it back. Sounded like the /opt filesystem was pretty much blown away by pwrite.

Looks like you don't much follow our discussions on the-ebook-org.

porkupan · 02-12-2007, 12:23 PM

Igor,

Perhaps this is no news to you, but there may be something else in the work, other than the pwrite failing. As you know well, the filesystems engaged in the recovery mode were not touched by the update. Therefore pwrite should continue working as it used to, right?

I am in no way an expert in CRAMFS, but I noticed that the format of the images presented by the update are somewhat different from what we had seen earlier. The superblock's flags field is zeroed out, the FS length field doesn't seem to make sense, and there are some other fields, which seem incorrect. Perhaps mtdmount (the Sony tool responsible for mounting filesystems) has been changed to look for certain parameters, which makes it impossible to mount a mkcramfs-generated image?

10-31-2006, 08:44 PM	#93
kovidgoyal creator of calibre Posts: 45,369 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	oh in that case do you know the value of the flag for read only, because all the files I've got logs for have the permissions DWORD set to zero. Alternatively, if you could give me the path to a read-only file, I can generate new logs. I suppose I could just look for any non-zero value but it would be nice to be precise. Thanks Last edited by kovidgoyal; 11-02-2006 at 05:46 PM.

11-07-2006, 12:21 AM	#94
kovidgoyal creator of calibre Posts: 45,369 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	free space igor do you know the command number for checking free space on the device?

11-07-2006, 02:00 AM	#96
kovidgoyal creator of calibre Posts: 45,369 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Hmm i seem to be getting correct free space on /Data with 0x53, but I'll try 0x103 and see. EDIT: Looks like 0x103 gives the free space on the reader memory whereas 0x53 gives the free space and total space for a device identified by a path. /Data is the reader mem, but b:/ doesn't seem to work for the SD card. Time to generate new logs I suppose EDIT2: 0x53 works for the cards as well, just needed to increase the timeout Last edited by kovidgoyal; 11-07-2006 at 02:33 AM.

01-06-2007, 01:05 PM	#100
susall Member Posts: 14 Karma: 10 Join Date: Jun 2005	where fonts dir on device? I can't seem to find a fonts directory under Data, using Igor's tool, on the device. I was wondering where else to look?

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10-31-2006, 03:42 PM	#91
NatCh Gizmologist Posts: 11,615 Karma: 929550 Join Date: Jan 2006 Location: Republic of Texas Embassy at Jackson, TN Device: Pocketbook Touch HD3	And any more word on an Install-the-font-I-select executable file?

11-07-2006, 01:38 AM	#95
cb2006 Junior Member Posts: 6 Karma: 10 Join Date: Oct 2006 Device: SonyReader	I believe it is 0x103.

11-07-2006, 11:50 AM	#98
kovidgoyal creator of calibre Posts: 45,369 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Thanks that makes my life a little easier

11-10-2006, 02:47 PM	#99
NatCh Gizmologist Posts: 11,615 Karma: 929550 Join Date: Jan 2006 Location: Republic of Texas Embassy at Jackson, TN Device: Pocketbook Touch HD3	Hey, all you happy hackers! It's been quiet on this for a while, so I wanted to check if there might be any progress on an Install-the-font-I-select executable file? For those of us who are a bit less adventurous, you know.

01-06-2007, 01:23 PM	#101
susall Member Posts: 14 Karma: 10 Join Date: Jun 2005	I found the exact directory, using Igor's tool. /opt/sony/ebook/FONT

02-11-2007, 10:47 PM	#102
porkupan Fanatic Posts: 556 Karma: 1057213 Join Date: Sep 2006 Location: North Eastern U.S. Device: Sony Reader	Igor, Any hope the pwrite will work again in the new firmware? Or are you among those smart ones who decided not to update?

02-12-2007, 04:31 AM	#103
igorsk Wizard Posts: 3,442 Karma: 300001 Join Date: Sep 2006 Location: Belgium Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear	It stopped working? That's strange. I would expect them to keep the interface. Anyway, I'll try to have a look into it in the next few days.

02-12-2007, 12:23 PM	#105
porkupan Fanatic Posts: 556 Karma: 1057213 Join Date: Sep 2006 Location: North Eastern U.S. Device: Sony Reader	Igor, Perhaps this is no news to you, but there may be something else in the work, other than the pwrite failing. As you know well, the filesystems engaged in the recovery mode were not touched by the update. Therefore pwrite should continue working as it used to, right? I am in no way an expert in CRAMFS, but I noticed that the format of the images presented by the update are somewhat different from what we had seen earlier. The superblock's flags field is zeroed out, the FS length field doesn't seem to make sense, and there are some other fields, which seem incorrect. Perhaps mtdmount (the Sony tool responsible for mounting filesystems) has been changed to look for certain parameters, which makes it impossible to mount a mkcramfs-generated image?

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