libieee1284 problems on FBSD 5.2.1 (was [sane-devel] canon_pp
does not work)
Tue, 07 Sep 2004 22:19:39 -0700
Matthew Duggan wrote:
> Since there's been two independant reports of problems with parport
> stuff on FreeBSD 5.2.1, it seems like there may be a problem with
> FBSD 5.2.1 and the libieee1284 port. I checked up the changelog to
> see what might have caused it, and this line makes me suspicious:
> The puc(4) PCI Universal Communications driver now supports connecting
> parallel ports to the ppc(4) driver.
> It's quite possible that something to do with that is breaking the
> direct access to the parallel port through /dev/io which libieee1284
> performs. Unfortunately I don't have a FBSD machine handy to test this
> theory.. has anyone out there had any success in getting libieee1284
> access on FBSD 5.2.1 working?
> - Matthew Duggan
The puc driver is supposed to support "dumb" parallel PCI interface
cards. I tried enabling it in the kernel (even though my parport is
onboard), no difference. Also, I'm not sure how new this is, but FBSD
5.2.1 has a /dev/ppi0, which is supposed to be for ieee1284 device
access. Perhaps libieee1284 needs to try this instead of /dev/io?
I'm still working on this intermittently....