Path: utzoo!attcan!uunet!mcsun!sunic!uupsi!rpi!crdgw1!ra!dixon
From: dixon@ra.crd.ge.com (walt dixon)
Newsgroups: comp.sys.ibm.pc
Subject: Re: MSC, Devices, and 0x1a
Message-ID: <5803@crdgw1.crd.ge.com>
Date: 6 Mar 90 13:42:38 GMT
References: <10521@ttidca.TTI.COM>
Sender: news@crdgw1.crd.ge.com
Reply-To: dixon@ra.crd.ge.com (walt dixon)
Organization: General Electric Corp. R&D, Schenectady, NY
Lines: 14

If one opens a device at the DOS level (using a handle),  and then
does an IOCTL to place the device in raw mode,  all output (including
0x1a) goes directly to the device.  Raw mode also has a definte
performance advantage over text mode.  DOS sends text mode writes
to the driver one character at a time but sends the entire request
with one driver call for raw mode.

Walt Dixon		{arpa:		dixon@crd.ge.com	}
			{us mail:	ge crd			}
			{		po box 8		}
			{		schenectady, ny 12301	}
			{phone:		518-387-5798		}

Walt Dixon dixon@crd.ge.com