From: Jeff Garzik <jgarzik@mandrakesoft.com>
To: Albert Cranford <ac9410@attbi.com>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [patch 3/3] 2.5.36 i2c new adapter i2c-pport driver
Date: Wed, 18 Sep 2002 12:33:46 -0400 [thread overview]
Message-ID: <3D88AAEA.2010009@mandrakesoft.com> (raw)
In-Reply-To: Pine.LNX.4.44.0209180205270.358-200000@home1
Albert Cranford wrote:
> +static int bit_pport_init(void)
> +{
> + if (!request_region((base+2),1, "i2c (PPORT adapter)")) {
> + return -ENODEV;
> + } else {
> +
> + /* test for PPORT adap. */
> +
> +
> + PortData=inb(base+2);
> + PortData= (PortData SET_SDA) SET_SCL;
> + outb(PortData,base+2);
> +
> + if (!(inb(base+2) | 0x06)) { /* SDA and SCL will be high */
> + DEBINIT(printk("i2c-pport.o: SDA and SCL was low.\n"));
> + return -ENODEV;
> + } else {
> +
> + /*SCL high and SDA low*/
> + PortData = PortData SET_SCL CLR_SDA;
> + outb(PortData,base+2);
> + udelay(400);
use schedule_timeout() instead of udelay() since you're in process
context. otherwise, looks ok...
prev parent reply other threads:[~2002-09-18 16:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-18 6:07 [patch 3/3] 2.5.36 i2c new adapter i2c-pport driver Albert Cranford
2002-09-18 16:33 ` Jeff Garzik [this message]
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