USB_CDC_Descriptor_FunctionalACM_t Struct Reference

CDC class-specific Functional ACM Descriptor (LUFA naming conventions). More...

Data Fields
USB_Descriptor_Header_t	Header
u8	Subtype
u8	Capabilities

Detailed Description

CDC class-specific Functional ACM Descriptor (LUFA naming conventions).

Type define for a CDC class-specific functional ACM descriptor. This indicates to the host that the CDC interface supports the CDC ACM subclass of the CDC specification. See the CDC class specification for more details.

See also

USB_CDC_StdDescriptor_FunctionalACM_t for the version of this type with standard element names.

Note

Regardless of CPU architecture, these values should be stored as little endian.

Field Documentation

Header

USB_Descriptor_Header_t USB_CDC_Descriptor_FunctionalACM_t::Header

Regular descriptor header containing the descriptor's type and length.

Subtype

u8 USB_CDC_Descriptor_FunctionalACM_t::Subtype

Sub type value used to distinguish between CDC class-specific descriptors, must be CDC_DSUBTYPE_CSInterface_ACM.

Capabilities

u8 USB_CDC_Descriptor_FunctionalACM_t::Capabilities

Capabilities of the ACM interface, given as a bit mask. For most devices, this should be set to a fixed value of 0x06 - for other capabilities, refer to the CDC ACM specification.