Date: Wed, 10 Sep 2008 23:19:10 +0100 From: Bruce M Simpson <bms@incunabulum.net> To: FreeBSD stable <freebsd-stable@freebsd.org> Subject: Intel ICH7 SMBus support, ichsmb(4) Message-ID: <48C847DE.7040508@incunabulum.net>
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Hi there, I have been looking at a system which has the Intel ICH7 south bridge. Whenever I try to probe the SMBus on this system with 'smbmsg -p', I get a lot of status=41 timeout messages in dmesg from the ichsmb(4) driver. I have been given the addresses of the SMBus peripherals and have tried initiating reads to their register space directly using 'smbmsg', with the same result. * Has anyone seen the same issues with the ICH7? * Does anyone know of any userland code I could use as an alternative to the ichsmb(4) driver? I looked at mbmon, it appears it relies on the smb(4) drivers; its direct ISA access only works for specific hardware monitoring chips which appear on the ISA/LPC bus and does not implement SMBus bit-banging in userland. Many many thanks for any help you can provide. cheers BMS
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