If any of you are trying to use gutenprint with USB printers, it would probably be useful to at least read this diff, and probably merge it into FreeBSD.
When I started, I read diffs from FreeBSD's ulpt to NetBSD's, and concluded that FreeBSD's was a lightly-modified (kernel infrastructure issues) version of an older version of NetBSD's. I think a remerge is in order. I'd be happy to answer questions if anyone works on this.
--- Begin Message ---Module Name: src Committed By: gdt Date: Tue Jan 8 00:58:10 UTC 2008 Modified Files: src/sys/dev/usb: ulpt.c Log Message: Support FIONBIO. Support non-blocking reads from USB printers. With this, escputil can query the printer model, and I can print a test page with gutenprint 5.1 and cups. Add many comments explaining why the support is not quite right. (This change is quite a bit less invasive than a "correct" fix, and thus more reasonable to pull up to netbsd-4.) Rototill debugging, so that all DPRINTFN have a level, and so that the message is printed if the debug level is >= the number in the source code. Document debug level plan. Fix bug where only one status change would be printed (by inspection, not tested). Document scheme for reading/discarding data when ulpt(4) is opened for write only. Delete dead code. Plan and patch posted on tech-kern without objections. To generate a diff of this commit: cvs rdiff -r1.78 -r1.79 src/sys/dev/usb/ulpt.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
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