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- >Newsgroups: comp.unix.microport,comp.sys.att,comp.std.unix
- >Followup-To: comp.unix.microport
- From: Dominic Dunlop <uunet!mcvax!sphinx.co.uk!domo>
-
- [ I'm not quite sure whether this was already posted to any of the
- other newsgroups, since I don't follow them, but I'm going to play
- it safe and just post it on comp.std.unix. Let me know if I guessed
- wrong, Dominic. -mod ]
-
- In article <1061@apt.UUCP> brian@award.UUCP (Brian Litzinger) writes:
- >> [Material from Greg Woods requesting tales of incompatibilities between
- >> V.3 ports on 80386-based systems.]
- >
- >I'm curious if the following does or does not consitute a compatibility
- >problem:
- >
- >Two different versions of 386 Unix V.3: Brand X and Brand Y
- >Same Application software
- >Same Hardware
- >Brand X can successfully talk to my telebit at 19200 baud rate.
- >Brand Y cannot.
- >
- >The problem is caused by Brand Y's serial port driver.
- >
- >Does this mean Brand Y is not compatible? After all, every application
- >that talks to my telebit fails.
-
- This sort of issue is the reason behind the incredibly detailed description
- of terminal devices in the POSIX 1003.1 standard. (Although I'd feel a
- little more secure in writing that if I had the standard to hand, rather
- than having left it at home...) Compliant systems should all agree on
- whether or not they can talk to a particular type of modem. V.3 is not
- compliant. Yet. To put it another way, how a system drives a modem is
- outside the scope of the standard set by an Application Binary Interface.
-
- By the way, a company called Mindcraft ((800) LE POSIX/(415) 493-7277) has
- recently introduced a POSIX Conformance Test Suite (PCTS), which it
- developed under contract to IBM, and which Mindcraft is authorised to
- distribute. According to a product description picked up by a colleague at
- the recent Uniforum show in Washington, the PCTS can be run on a
- non-conforming system in order to determine what must be done to make the
- system conformant. Yours for $2,500. Looks useful. Those interested
- should form an orderly line in Palo Alto.
-
- (Usual disclaimers apply, particularly as I haven't perused the product!
- -- Hi, Bruce!)
-
- [ There's a story about Mindcraft in the first issue of UNIX Today. -mod ]
- --
- Dominic Dunlop
- domo@sphinx.co.uk domo@riddle.uucp
-
- Volume-Number: Volume 15, Number 8
-
-