Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewsl!cbnewsk!dez From: dez@cbnewsk.att.com (daniel.e.zuccarelli) Newsgroups: comp.os.os2.programmer Subject: Re: DOS driver under OS/2 Keywords: device driver Message-ID: <1990Nov16.133628.6975@cbnewsk.att.com> Date: 16 Nov 90 13:36:28 GMT References: <478@epicb.com> <1990Nov15.160926.5036@cbnewsk.att.com> <10480@ubc-cs.UUCP> Distribution: na Organization: AT&T Bell Laboratories Lines: 19 In article <10480@ubc-cs.UUCP>, ballard@cheddar.ucs.ubc.ca (Alan Ballard) writes: > In article <1990Nov15.160926.5036@cbnewsk.att.com> dez@cbnewsk.att.com (daniel.e.zuccarelli) writes: > >However you must rewrite your drvier for OS/2, and it > >must be a bi-modal (both real and protected mode) driver if you plan > >on calling it from the DOS box (which runs in real mode). > > Supposedly, some DOS drivers can run unchanged, as long as you *only* call > them from the DOS box. However, the constraints are such that few drivers > are likely to make it... character mode only, no interrupt handler, > (hardware) device cannot also be accessed in any way from prot mode. > > Alan Ballard | Internet: ballard@ucs.ubc.ca How would it be possible for OS/2 to install such a driver? -- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ "Well, there's not much to see actually; we're inside a Chinese dragon." - Dr. Howard Bannister Dan Zuccarelli - AT&T Bell Labs CB/RV, INTERACTIVE Systems Corp.