1*4882a593Smuzhiyun========================= 2*4882a593SmuzhiyunKernel driver i2c-nforce2 3*4882a593Smuzhiyun========================= 4*4882a593Smuzhiyun 5*4882a593SmuzhiyunSupported adapters: 6*4882a593Smuzhiyun * nForce2 MCP 10de:0064 7*4882a593Smuzhiyun * nForce2 Ultra 400 MCP 10de:0084 8*4882a593Smuzhiyun * nForce3 Pro150 MCP 10de:00D4 9*4882a593Smuzhiyun * nForce3 250Gb MCP 10de:00E4 10*4882a593Smuzhiyun * nForce4 MCP 10de:0052 11*4882a593Smuzhiyun * nForce4 MCP-04 10de:0034 12*4882a593Smuzhiyun * nForce MCP51 10de:0264 13*4882a593Smuzhiyun * nForce MCP55 10de:0368 14*4882a593Smuzhiyun * nForce MCP61 10de:03EB 15*4882a593Smuzhiyun * nForce MCP65 10de:0446 16*4882a593Smuzhiyun * nForce MCP67 10de:0542 17*4882a593Smuzhiyun * nForce MCP73 10de:07D8 18*4882a593Smuzhiyun * nForce MCP78S 10de:0752 19*4882a593Smuzhiyun * nForce MCP79 10de:0AA2 20*4882a593Smuzhiyun 21*4882a593SmuzhiyunDatasheet: 22*4882a593Smuzhiyun not publicly available, but seems to be similar to the 23*4882a593Smuzhiyun AMD-8111 SMBus 2.0 adapter. 24*4882a593Smuzhiyun 25*4882a593SmuzhiyunAuthors: 26*4882a593Smuzhiyun - Hans-Frieder Vogt <hfvogt@gmx.net>, 27*4882a593Smuzhiyun - Thomas Leibold <thomas@plx.com>, 28*4882a593Smuzhiyun - Patrick Dreker <patrick@dreker.de> 29*4882a593Smuzhiyun 30*4882a593SmuzhiyunDescription 31*4882a593Smuzhiyun----------- 32*4882a593Smuzhiyun 33*4882a593Smuzhiyuni2c-nforce2 is a driver for the SMBuses included in the nVidia nForce2 MCP. 34*4882a593Smuzhiyun 35*4882a593SmuzhiyunIf your ``lspci -v`` listing shows something like the following:: 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun 00:01.1 SMBus: nVidia Corporation: Unknown device 0064 (rev a2) 38*4882a593Smuzhiyun Subsystem: Asustek Computer, Inc.: Unknown device 0c11 39*4882a593Smuzhiyun Flags: 66Mhz, fast devsel, IRQ 5 40*4882a593Smuzhiyun I/O ports at c000 [size=32] 41*4882a593Smuzhiyun Capabilities: <available only to root> 42*4882a593Smuzhiyun 43*4882a593Smuzhiyunthen this driver should support the SMBuses of your motherboard. 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun 46*4882a593SmuzhiyunNotes 47*4882a593Smuzhiyun----- 48*4882a593Smuzhiyun 49*4882a593SmuzhiyunThe SMBus adapter in the nForce2 chipset seems to be very similar to the 50*4882a593SmuzhiyunSMBus 2.0 adapter in the AMD-8111 south bridge. However, I could only get 51*4882a593Smuzhiyunthe driver to work with direct I/O access, which is different to the EC 52*4882a593Smuzhiyuninterface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the 53*4882a593SmuzhiyunAsus A7N8X lists two SMBuses, both of which are supported by this driver. 54