From owner-freebsd-hackers Tue Apr 25 20:20:51 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id UAA03668 for hackers-outgoing; Tue, 25 Apr 1995 20:20:51 -0700 Received: from haven.uniserve.com (haven.uniserve.com [198.53.215.121]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id UAA03645 for ; Tue, 25 Apr 1995 20:20:29 -0700 Received: by haven.uniserve.com id <139>; Tue, 25 Apr 1995 20:34:39 -0700 Date: Tue, 25 Apr 1995 20:33:56 -0700 (PDT) From: Tom Samplonius To: "Rodney W. Grimes" cc: hackers@FreeBSD.org Subject: Re: Buslogic? In-Reply-To: <199504260104.SAA00757@gndrsh.aac.dev.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: hackers-owner@FreeBSD.org Precedence: bulk On Tue, 25 Apr 1995, Rodney W. Grimes wrote: > This is from the followind data structure at line 330 of bt742.c: > > struct bt_ext_info { > u_char bus_type; /* Host adapter bus type */ > u_char bios_addr; /* Bios Address-Not used */ > u_short max_seg; /* Max segment List */ > u_char num_mbx; /* Number of mailbox */ > int32 mbx_base; /* mailbox base address */ > struct { > u_char resv1:2; /* ??? */ > u_char maxsync:1; /* ON: 10MB/s , OFF: 5MB/s */ > u_char resv2:2; /* ??? */ > u_char sync:1; /* ON: Sync, OFF: async ONLY!! */ > >>>>> HERE <<<<<< this bit is 0 for your controller for some reason :-(. > > u_char resv3:2; /* ??? */ > } s; > u_char firmid[3]; /* Firmware ver. & rev. w/o last char */ > }; Hmm, I'll see if I can build a kernel tonight that forces it on, and use sync whether the BT946C likes it or not. The worst that could happen is badly managled filesystems. There could be a problem with the ROM version that I have (or perhaps a new "feature"). Tom