acpismbus man page on NetBSD

Man page or keyword search:  
man Server   9087 pages
apropos Keyword Search (all sections)
Output format
NetBSD logo
[printable version]

ACPISMBUS(4)		 BSD Kernel Interfaces Manual		  ACPISMBUS(4)

NAME
     acpismbus — ACPI SMBus Control Method Interface

SYNOPSIS
     acpismbus* at acpi?
     iic* at acpismbus?

DESCRIPTION
     The acpismbus driver supports instances of the ACPI SMBus Control Method
     Interface.	 This enables i2c access to bus segments which might not oth‐
     erwise be accessible due to missing "native" driver support.  The SMBus
     Process Call protocol is not supported.  All other SMBus protocols are
     supported to the extent that the underlying controller supports them.

SEE ALSO
     acpi(4), iic(4)

HISTORY
     The acpismbus driver appeared in NetBSD 6.0.

BUGS
     Although acpismbus SMBus Alerts can be associated with individual
     devices, this capability is ignored.  When an acpismbus SMBus Alert is
     generated, all devices on the i2c bus segment which have registered an
     interrupt routine are notified.

     The SMBus CMI protocol defines a method to provide a list of devices on
     an i2c bus segment and their addresses.  The acpismbus driver makes no
     attempt to retrieve or process this device list.

     There is currently no way to determine if the i2c controller managed by
     an instance of the ACPI SMBus CMI can also be accessed using a native
     device driver.  Therefore, the acpismbus driver should not be enabled by
     default.  If both a native driver and the acpismbus driver attempt to
     access the same i2c bus segment, the results are undefined.

BSD			       February 6, 2010				   BSD
[top]
                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 
More information is available in HTML format for server NetBSD

List of man pages available for NetBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net