Petter Reinholdtsen wrote:
> After reading thru the source, it seems like a few of the functions
> might be used to improve the pio API. It must be possible to make a
> parport API that works on all platforms. Are the _epp functions
> implementing the 'enhanced parport' mode? I've been reading about the
> the Linux parport kernel API, and noticed support for epp, ecp and
> nibble mode in this API. Would a sanei parport API with support for
> such modes make it easier to support parport scanners?
What exactly do you mean with "kernel API"? I found in extras/paride/
some kind of API for certain devices that connect to the parport. A
module for a mustek pp scanner could easily be added. But I think, it's
better to keep the code in the sanei_pa4s2 file, because one doesn't
need to recompile the whole kernel just to install SANE... furthermore,
I'm not sure what this epp stuff is about. As far as I have experienced,
there are two choices:
a) EPP/ECP is present (i.e. the parport hardware supports it)
b) it's not...
and in the later case, the _epp functions just don't work... this means,
that one cannot write a sanei parport API that supports any pp scanner.
I fear, we'll have to add an interface for each pp chipset.
but: I've never seen any technical description neither of EPP/ECP
protocolls nor of the mustek chipset. The knowledge how to write an
interface suddendly was in my brain... :-)
-- Source code, list archive, and docs: http://www.mostang.com/sane/ To unsubscribe: echo unsubscribe sane-devel | mail email@example.com
This archive was generated by hypermail 2b29 : Thu Jun 08 2000 - 10:56:26 PDT