Re: Accessing Hardware
Re: Accessing Hardware
- Subject: Re: Accessing Hardware
- From: Ondra Cada <email@hidden>
- Date: Tue, 14 Aug 2001 20:26:51 +0200
Bill,
>
>>>>> Bill Judd (BJ) wrote at Tue, 14 Aug 2001 11:15:29 -0700:
BJ> see
http://developer.apple.com/techpubs/macosx/Kernel/kernel.html, under
BJ> the topic "Hardware Access".
The document's name is quite misleading -- since you are not "accessing
hardware", you are "using kernel services which _MIGHT_ access hardware".
Otherwise, it just describes in many details the very same thing which I have
written:
BJ> >-----Original Message-----
BJ> >From: Ondra Cada [
mailto:email@hidden]
BJ> >Sent: Tuesday, August 14, 2001 11:07 AM
BJ> >To: Bill Judd
BJ> >Cc: email@hidden
BJ> >Subject: Re: Accessing Hardware
BJ> >
BJ> >
BJ> >Bill,
BJ> >
BJ> > >>>>>>Bill Judd (BJ) wrote at Tue, 14 Aug 2001 09:58:15 -0700:
BJ> >BJ> How do you access hardware from Cocoa apps?
BJ> >
BJ> >You don't. That is task for drivers, whose services then should
BJ> >be accessed
BJ> >from applications -- regardless they are Cocoa or not.
BJ> >
BJ> >Save some possible _minor_ exceptions which prove the rule (actually, I
BJ> >can't remember any just now!), you NEVER EVER access hardware
BJ> >directly from
BJ> >applications.
---
Ondra Cada
OCSoftware: email@hidden
http://www.ocs.cz
private email@hidden
http://www.ocs.cz/oc