Intel ICH7 SMBus support, ichsmb(4)
000.fbsd at quip.cz
Thu Sep 11 09:51:28 UTC 2008
Jeremy Chadwick wrote:
> On Wed, Sep 10, 2008 at 11:19:10PM +0100, Bruce M Simpson wrote:
>>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.
> Yes, I have seen this behaviour but *only* when querying a slave address
> which was incorrect or had no device tied to it. You should not be
> using the "8-bit data address".
>>* Has anyone seen the same issues with the ICH7?
> All of my development on bsdhwmon has been done exclusively on ICH7
> chipsets, except for the hardware I don't have access to (which use
> other chipsets, but still use ichsmb(4)):
> During early development of bsdhwmon, I used smbmsg exclusively for
> So in that respect, no, I've never seen the problem you report.
Are you still actively working on bsdhwmon and do you plan to support
non-Supermicro servers? I wrote you an e-mail in June about my interest
in testing thist project on my servers, but got no reply.
I have some Sun Fire X2100 M2 (nVidia chips), IBM x335 (Intel), IBM x336
(Intel) servers and one Supermicro X6DHP-8G (Intel) server.
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