From owner-freebsd-questions Tue May 5 13:22:02 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA28293 for freebsd-questions-outgoing; Tue, 5 May 1998 13:22:02 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from tornado.cisco.com (tornado.cisco.com [171.69.104.22]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA28250 for ; Tue, 5 May 1998 13:21:49 -0700 (PDT) (envelope-from bmcgover@bmcgover-pc.cisco.com) Received: from bmcgover-pc.cisco.com (bmcgover-pc.cisco.com [171.69.104.147]) by tornado.cisco.com (8.8.5-Cisco.1/8.6.5) with ESMTP id QAA15596 for ; Tue, 5 May 1998 16:21:18 -0400 (EDT) Received: from bmcgover-pc.cisco.com (localhost.cisco.com [127.0.0.1]) by bmcgover-pc.cisco.com (8.8.8/8.8.8) with ESMTP id QAA01434 for ; Tue, 5 May 1998 16:21:18 -0400 (EDT) (envelope-from bmcgover@bmcgover-pc.cisco.com) Message-Id: <199805052021.QAA01434@bmcgover-pc.cisco.com> To: questions@FreeBSD.ORG Reply-to: mcgovern@spoon.beta.com Subject: ISA memory question... Date: Tue, 05 May 1998 16:21:18 -0400 From: Brian McGovern Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In my config file, I have a device that is configured as follows: device mica0 at isa? port 0x310 tty irq5 iomem 0xd0000 iosiz 65536 vector micaintr Yes, its a custom device driver... Anyhow, when in the driver, I see the memory as being at (pointer location) 0xf00d0000 (probe reports it at 0xd0000). Is this correct, or is there additional translations that have to get done to pointers? The reason I'm asking is that the memory is coming back as all-bits-on, even after I try to place a bit-pattern in, or zero-ize it, which smells to me like I'm working with a memory region that really isn't mapped there. However, I don't get seg faults, or other errors, so there isn't a "hole". Comments? doof-slaps? Anyone? -Brian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message