Oops, forgot to CC the list... ----- Forwarded message from "Mark M. Hoffman" <mhoffman at lightlink.com> ----- From: "Mark M. Hoffman" <mhoffman at lightlink.com> To: David Knierim <david_knierim at earthlink.net> Date: Mon, 20 Sep 2004 20:22:55 -0400 Subject: Re: Data block transactions fail on i2c-i801 controller? Hi David: * David Knierim <david_knierim at earthlink.net> [2004-09-20 16:40:33 -0400]: > > Hi, > I'm working with server based on Intel 7520 (Lindenhurst) chipset. This uses the i2c-i801 bus driver. An lm93 is attached to this bus. If I load the lm93 in it's default mode, which "allows SMBus block data transactions if the host supports them", it takes a long time for sensors to run. This is the output of "time": > real 0m10.901s > user 0m0.010s > sys 0m0.010s > > If the lm93 is loaded with it's disable_block mode, which disables data block transactions, the operation is much faster: > real 0m1.261s > user 0m0.010s > sys 0m0.010s > > > In both cases, there are no errors logged to dmesg or /var/log/messages. The output is correct in both cases. The data block transaction mode just takes a lot longer to complete. > > > Any ideas?? Please uncomment line 42 "#define DEBUG" and rebuild, reinstall, and try again. Now you should get some log messages... please send those here; hopefully the original authors (Phil & MDS) can have a look as well. Regards, -- Mark M. Hoffman mhoffman at lightlink.com
