[9fans] 9P via serial links or USB

[9fans] 9P via serial links or USB

[Enrico Weigelt]

Hi folks,


did anyone already do some research on running 9P directly via
serial or USB links as interface for embedded devices, eg. digicams ?

I'm currently advertising an students project for developing an
gphoto2-fileserver, so a wide range of digicams (which do not
support usb mass storage protocol) can be mounted directly.
This project should also include a small study on using 9P
directly as the camera's protocol.

cu
--
----------------------------------------------------------------------
 Enrico Weigelt, metux IT service -- http://www.metux.de/

 phone:  +49 36207 519931  email: weigelt@metux.de
 mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
----------------------------------------------------------------------
 Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
----------------------------------------------------------------------

Re: [9fans] 9P via serial links or USB

[hiro]

There already is a gphoto2 fs for fuse if I remember correctly. Though
I haven't heard of any camera with 9p yet.
But it's late and perhaps I misunderstand you.

On Tue, Nov 24, 2009 at 7:01 PM, Enrico Weigelt <weigelt@metux.de> wrote:
>
> Hi folks,
>
>
> did anyone already do some research on running 9P directly via
> serial or USB links as interface for embedded devices, eg. digicams ?
>
> I'm currently advertising an students project for developing an
> gphoto2-fileserver, so a wide range of digicams (which do not
> support usb mass storage protocol) can be mounted directly.
> This project should also include a small study on using 9P
> directly as the camera's protocol.
>
> cu
> --
> ----------------------------------------------------------------------
>  Enrico Weigelt, metux IT service -- http://www.metux.de/
>
>  phone:  +49 36207 519931  email: weigelt@metux.de
>  mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
> ----------------------------------------------------------------------
>  Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
> ----------------------------------------------------------------------
>
>

Re: [9fans] 9P via serial links or USB

[Latchesar Ionkov]

there is gphoto2 for 9p -- it was in the npfs repository for more than
4 years. I haven't checked it recently so I don't know if it still
compiles.

    Lucho

On Tue, Nov 24, 2009 at 6:08 PM, hiro <23hiro@googlemail.com> wrote:
> There already is a gphoto2 fs for fuse if I remember correctly. Though
> I haven't heard of any camera with 9p yet.
> But it's late and perhaps I misunderstand you.
>
> On Tue, Nov 24, 2009 at 7:01 PM, Enrico Weigelt <weigelt@metux.de> wrote:
>>
>> Hi folks,
>>
>>
>> did anyone already do some research on running 9P directly via
>> serial or USB links as interface for embedded devices, eg. digicams ?
>>
>> I'm currently advertising an students project for developing an
>> gphoto2-fileserver, so a wide range of digicams (which do not
>> support usb mass storage protocol) can be mounted directly.
>> This project should also include a small study on using 9P
>> directly as the camera's protocol.
>>
>> cu
>> --
>> ----------------------------------------------------------------------
>>  Enrico Weigelt, metux IT service -- http://www.metux.de/
>>
>>  phone:  +49 36207 519931  email: weigelt@metux.de
>>  mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
>> ----------------------------------------------------------------------
>>  Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
>> ----------------------------------------------------------------------
>>
>>
>
>

Re: [9fans] 9P via serial links or USB

[Enrico Weigelt]

* hiro <23hiro@googlemail.com> wrote:
> There already is a gphoto2 fs for fuse if I remember correctly.

Last time I heared, it was just planned.
Perhaps I'm not up2date and you've got a pointer for me ?

> Though I haven't heard of any camera with 9p yet.

Yep, that would be the next step: provide a toolkit for embedded
developers and encourage them to use it instead of the bogus
pptp+proprietary stuff.


Meanwhile I've made up another front:
I'm negotiating with an developer/producer of power meters and
similar products, which log their data to SD cards and have an
ethernet/IP interface.

At this point I'm thinking about an more thin approach for those
devices: put 9P on the lowest level possible, no IP, but a very
thin protocol (eg. somethink like IL, but directly ontop of eth ?),
just enough to carry 9P messages. Just an error-correcting (not
necessarily in-order) datagram protocol, which does not need an
explicit address assignment (eg. builtin 64bit device addresses ?).
These devices essentially just speak 9P - multiple devices on
the same network interface are represented within the fs hierachy.


cu
--
----------------------------------------------------------------------
 Enrico Weigelt, metux IT service -- http://www.metux.de/

 phone:  +49 36207 519931  email: weigelt@metux.de
 mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
----------------------------------------------------------------------
 Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
----------------------------------------------------------------------

Re: [9fans] 9P via serial links or USB

[Enrico Weigelt]

* Latchesar Ionkov <lucho@ionkov.net> wrote:
> there is gphoto2 for 9p -- it was in the npfs repository for more than
> 4 years. I haven't checked it recently so I don't know if it still
> compiles.

hmm, google doesnt show up anything on that.
do you have a pointer to it ?


cu
--
----------------------------------------------------------------------
 Enrico Weigelt, metux IT service -- http://www.metux.de/

 phone:  +49 36207 519931  email: weigelt@metux.de
 mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
----------------------------------------------------------------------
 Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
----------------------------------------------------------------------

Re: [9fans] 9P via serial links or USB

[Latchesar Ionkov]

http://www.sourceforge.net/projects/npfs

On Thu, Nov 26, 2009 at 3:54 PM, Enrico Weigelt <weigelt@metux.de> wrote:
> * Latchesar Ionkov <lucho@ionkov.net> wrote:
>> there is gphoto2 for 9p -- it was in the npfs repository for more than
>> 4 years. I haven't checked it recently so I don't know if it still
>> compiles.
>
> hmm, google doesnt show up anything on that.
> do you have a pointer to it ?
>
>
> cu
> --
> ----------------------------------------------------------------------
>  Enrico Weigelt, metux IT service -- http://www.metux.de/
>
>  phone:  +49 36207 519931  email: weigelt@metux.de
>  mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
> ----------------------------------------------------------------------
>  Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
> ----------------------------------------------------------------------
>
>

Re: [9fans] 9P via serial links or USB

[Enrico Weigelt]

* Latchesar Ionkov <lucho@ionkov.net> wrote:
> http://www.sourceforge.net/projects/npfs

hmm, the only available download I see here is spfs, which
doesnt seem to contain any SANE-related stuff.
did i miss something ?

cu
--
----------------------------------------------------------------------
 Enrico Weigelt, metux IT service -- http://www.metux.de/

 phone:  +49 36207 519931  email: weigelt@metux.de
 mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
----------------------------------------------------------------------
 Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
----------------------------------------------------------------------

Re: [9fans] 9P via serial links or USB

[Latchesar Ionkov]

you can get npfs from the subversion repository. there is gphotofs.c in fs/.

On Thu, Nov 26, 2009 at 4:37 PM, Enrico Weigelt <weigelt@metux.de> wrote:
> * Latchesar Ionkov <lucho@ionkov.net> wrote:
>> http://www.sourceforge.net/projects/npfs
>
> hmm, the only available download I see here is spfs, which
> doesnt seem to contain any SANE-related stuff.
> did i miss something ?
>
> cu
> --
> ----------------------------------------------------------------------
>  Enrico Weigelt, metux IT service -- http://www.metux.de/
>
>  phone:  +49 36207 519931  email: weigelt@metux.de
>  mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
> ----------------------------------------------------------------------
>  Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
> ----------------------------------------------------------------------
>
>

Re: [9fans] 9P via serial links or USB

[hiro]

There was some stuff available even before 2004
I think I've used once one of these:
http://intr.overt.org/gphotofs/
http://www.hep.phy.cam.ac.uk/~lester/gphoto2-fuse-fs/

On Thu, Nov 26, 2009 at 11:53 PM, Enrico Weigelt <weigelt@metux.de> wrote:
> * hiro <23hiro@googlemail.com> wrote:
>> There already is a gphoto2 fs for fuse if I remember correctly.
>
> Last time I heared, it was just planned.
> Perhaps I'm not up2date and you've got a pointer for me ?
>
>> Though I haven't heard of any camera with 9p yet.
>
> Yep, that would be the next step: provide a toolkit for embedded
> developers and encourage them to use it instead of the bogus
> pptp+proprietary stuff.
>
>
> Meanwhile I've made up another front:
> I'm negotiating with an developer/producer of power meters and
> similar products, which log their data to SD cards and have an
> ethernet/IP interface.
>
> At this point I'm thinking about an more thin approach for those
> devices: put 9P on the lowest level possible, no IP, but a very
> thin protocol (eg. somethink like IL, but directly ontop of eth ?),
> just enough to carry 9P messages. Just an error-correcting (not
> necessarily in-order) datagram protocol, which does not need an
> explicit address assignment (eg. builtin 64bit device addresses ?).
> These devices essentially just speak 9P - multiple devices on
> the same network interface are represented within the fs hierachy.
>
>
> cu
> --
> ----------------------------------------------------------------------
>  Enrico Weigelt, metux IT service -- http://www.metux.de/
>
>  phone:  +49 36207 519931  email: weigelt@metux.de
>  mobile: +49 174 7066481   icq:   210169427         skype: nekrad666
> ----------------------------------------------------------------------
>  Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
> ----------------------------------------------------------------------
>
>