the openbsd policy on openness extends to hardware documentation: in the slides for a december 2006 presentation, de raadt explained that without it "developers often make mistakes writing drivers", and pointed out that "the [oh my god, i got it to work] rush is harder to achieve, and some developers just give up." he went on to say that vendor-supplied binary drivers are unacceptable for inclusion in openbsd, that they have "no trust of vendor binaries running in our kernel" and that there is "no way to fix [them] ... when they break."