From mboxrd@z Thu Jan  1 00:00:00 1970
From: Robin Farine <acnrf@dial.eunet.ch>
To: tsmith@megaroms.co.uk
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] poll.h and polling stuff???
Date: Wed, 25 Jul 2001 03:27:00 -0000
Message-id: <86n15t48bi.fsf@halftrack.hq.acn-group.ch>
References: <20010725102047.agsplanning+tsmith@f9>
X-SW-Source: 2001-07/msg00775.html

tsmith@megaroms.co.uk writes:

> In fact I've tried that bit of CDL in my last mail and it doesn't seem to
> define CYGINT_ISO_POLL as 1 as hoped. Help appreciated.

I suppose that in this case you do not need an interface at all. They represent
an abstract service that other components depend upon.

In the POLL case, you define a concrete service that doesn't realize an abstract
interface in contrast to a serial driver, for instance, which provides abstract
read/write/... operations to clients but requires a concrete, hardware specific
implementation that realizes the serial interface by defining these operations.

Robin