Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
ConnectionSpeed is the maximum connection speed supported by this connection, in hertz. The bit
field name _SPE is automatically created to refer to this portion of the resource descriptor.
AddressingMode is an optional argument and can be either AddressingMode7Bit or
AddressingMode10Bit. AddressingMode7Bit is the default. The bit field name _MOD is
automatically created to refer to this portion of the resource descriptor.
ResourceSource is a string which uniquely identifies the I2C bus controller referred to by this
descriptor. ResourceSource can be a fully-qualified name, a relative name or a name segment that
utilizes the namespace search rules.
ResourceSourceIndex is an optional argument and is assumed to be 0 for this revision.
ResourceUsage is an optional argument and is assumed to be ResourceConsumer for this revision.
DescriptorName is an optional argument that specifies a name for an integer constant that will be
created in the current scope that contains the offset of this resource descriptor within the current
resource template buffer. The predefined descriptor field names may be appended to this name to
access individual fields within the descriptor via the Buffer Field operators.
Shared is an optional argument and can be either Shared or Exclusive. If not specified, Exclusive is
assumed. The bit field name _SHR is automatically created to refer to this portion of the resource
descriptor.
VendorData is an optional argument that specifies an object to be decoded by the OS driver. It is a
RawDataBuffer. The bit field name _VEN is automatically created to refer to this portion of the
resource descriptor.
Description
The I2CSerialBusV2 macro evaluates to a buffer that contains an I2C Serial Bus resource descriptor
(Version 2). The macro is designed to be used inside of a ResourceTemplate (see Section 19.3.3).
19.6.57 If (Conditional Execution)
Syntax
If (Predicate) {TermList}
Arguments
Predicate is evaluated as an Integer.
Description
If the Predicate is non-zero, the term list of the If term is executed.
Example
The following examples all check for bit 3 in Local0 being set, and clear it if set.
846 April, 2015 Version 6.0