[sane-devel] Re: HP 4570c - any progress?

2005-09-14 Thread Henning Meier-Geinitz
Hi, On Tue, Sep 13, 2005 at 07:36:19PM +0200, Bertrik Sikken wrote: The protocol is weird because it seems to implement some kind of 'USB-over-USB', i.e. the data payload of the USB control packets looks like another USB control packet. The payload size never appears to exceed 8 bytes. Maybe

[sane-devel] Re: HP 4570c - any progress?

2005-09-14 Thread Bertrik Sikken
Henning Meier-Geinitz wrote: Hi, On Tue, Sep 13, 2005 at 07:36:19PM +0200, Bertrik Sikken wrote: The protocol is weird because it seems to implement some kind of 'USB-over-USB', i.e. the data payload of the USB control packets looks like another USB control packet. The payload size never

[sane-devel] Re: HP 4570c - any progress?

2005-09-14 Thread Daniel Franke
BTW, Daniel, I wrote a simple command line tool that talks to a hp5400 to query it for its version string. This can be useful as an example to do some low-level debugging in the early stages of hacking. You still need to modify it to use the USB-over-USB protocol, though, but I can help you

[sane-devel] Re: HP 4570c - any progress?

2005-09-13 Thread Daniel Franke
On Sunday 11 September 2005 18:29, I wrote: Is currently anyone working on this specific driver? If not, is there any code to pick up? Any docs from HP someone already acquired? I would also appriciate some hints/documentation about GL841/GL646 (which seems to be related) [3]. Re-hi all,

[sane-devel] Re: HP 4570c - any progress?

2005-09-13 Thread Pierre Willenbrock
Hi Daniel Franke schrieb: On Sunday 11 September 2005 18:29, I wrote: Is currently anyone working on this specific driver? If not, is there any code to pick up? Any docs from HP someone already acquired? I would also appriciate some hints/documentation about GL841/GL646 (which seems to be

[sane-devel] Re: HP 4570c - any progress?

2005-09-13 Thread Bertrik Sikken
Daniel Franke wrote: On Sunday 11 September 2005 18:29, I wrote: Is currently anyone working on this specific driver? If not, is there any code to pick up? Any docs from HP someone already acquired? I would also appriciate some hints/documentation about GL841/GL646 (which seems to be related)