Date: Sun, 14 Dec 2008 15:58:08 +0100 From: Henrik Brix Andersen <brix@FreeBSD.org> To: freebsd-embedded@FreeBSD.org Subject: iicbus(4) speed selection Message-ID: <20081214145807.GA18293@tirith.brixandersen.dk>
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--wac7ysb48OaltWcw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, One of the parameters to our iicbus_reset method is a speed selection, which can be either IIC_SLOW, IIC_FAST or IIC_FASTEST. Both arm/at91/at91_twi.c and dev/pcf/pcf.c interpret these as 1.5kb/s, 45kb/s and 90kb/s respectively, which has me wondering. Knowing I2C, I would have expected something like 10kb/s, 100kb/s and 400kb/s. Does anybody know why these speeds were selected when implementing the above mentioned drivers? Are new drivers required to match these speeds? Brix --=20 Henrik Brix Andersen <brix@FreeBSD.org> --wac7ysb48OaltWcw Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) Comment: GnuPG signed iEYEARECAAYFAklFHv4ACgkQv+Q4flTiePhnJwCeMnf1C8YQa3q56s6iRnb+AYwo yncAn2buMNAyqgDN5QyFzazJUkT6yyrz =rvMV -----END PGP SIGNATURE----- --wac7ysb48OaltWcw--
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