Date: Wed, 22 Jul 1998 06:28:20 -0400 (EDT) From: Peter Dufault <dufault@hda.com> To: Nicolas.Souchu@prism.uvsq.fr (Nicolas Souchu) Cc: freebsd-hackers@FreeBSD.ORG, freebsd-multimedia@FreeBSD.ORG, mbouget@club-internet.fr Subject: Re: I2C and SMB development status Message-ID: <199807221028.GAA24059@hda.hda.com> In-Reply-To: <19980719123220.02032@breizh.prism.uvsq.fr> from Nicolas Souchu at "Jul 19, 98 12:32:20 pm"
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> Hi there, > > I'd like to synchronize current works on I2C and SMB > > Here we have developed an I2C framework with a PCF (master/slave) driver. > It looks like this: > > > +---------+ +----------+ > | iic I/O | | if_ic.c | DEVICES > +---------+ +----------+ > > +----------------------+ > | iicbus | BUS > +----------------------+ > > +---------+ +----------+ > | pcf | | bit-bang | ADAPTERS > +---------+ +----------+ > > iic: master polled I/O allows to access any chip on the i2c bus What do you mean here by "master polled I/O"? > if_ic: point to point IP driver over i2c > iicbus: i2c bus generic code (exactly like ppbus for parallel port) > pcf: pcf driver > bit-bang: bit banging driver not yet ported from Peter Dufault code > (Peter, would you have time/want to port your big-banging code?) My schedule doesn't permit it now. Anyone interested in a non-blocking bit banging implementation should look in the i2cslave code in my i2c code. Just now I'm more interested in getting some of your work for the PCF since I need the interrupt driven version and haven't gotten around to it yet. Peter -- Peter Dufault (dufault@hda.com) Realtime development, Machine control, HD Associates, Inc. Safety critical systems, Agency approval To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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