Intel ICH7 SMBus support, ichsmb(4)
Bruce M Simpson
bms at incunabulum.net
Wed Sep 10 22:19:12 UTC 2008
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
Many many thanks for any help you can provide.
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