app_usbd_hid_methods_t Struct Reference

HID unified interface. More...

#include <app_usbd_hid.h>

Data Fields
ret_code_t(*	on_get_report )(app_usbd_class_inst_t const *p_inst, app_usbd_setup_evt_t const *p_setup_ev)
	Function called on HID specific, GetReport request. More...
ret_code_t(*	on_set_report )(app_usbd_class_inst_t const *p_inst, app_usbd_setup_evt_t const *p_setup_ev)
	Function called on HID specific, SetReport request. More...
ret_code_t(*	ep_transfer_in )(app_usbd_class_inst_t const *p_inst)
	Function called on IN endpoint transfer. More...
ret_code_t(*	ep_transfer_out )(app_usbd_class_inst_t const *p_inst)
	Function called on OUT endpoint transfer. More...
uint8_t(*	subclass_count )(app_usbd_class_inst_t const *p_inst)
	Function returns subclass descriptor count. More...
size_t(*	subclass_length )(app_usbd_class_inst_t const *p_inst, uint8_t desc_num)
	Function returns subclass descriptor size. More...
const uint8_t *(*	subclass_data )(app_usbd_class_inst_t const *p_inst, uint8_t desc_num, uint32_t cur_byte)
	Function returns pointer to subclass descriptor data. More...
ret_code_t(*	on_idle )(app_usbd_class_inst_t const *p_inst, uint8_t report_id)
	Function called on idle transfer. More...
ret_code_t(*	set_idle_handler )(app_usbd_class_inst_t const *p_inst, app_usbd_hid_idle_handler_t handler)

Detailed Description

HID unified interface.

Field Documentation

ret_code_t(* app_usbd_hid_methods_t::ep_transfer_in)(app_usbd_class_inst_t const *p_inst)

Function called on IN endpoint transfer.

This function should trigger next endpoint IN transfer if required.

Parameters

[in]

p_inst

Class instance.

Returns

Standard error code.

ret_code_t(* app_usbd_hid_methods_t::ep_transfer_out)(app_usbd_class_inst_t const *p_inst)

Function called on OUT endpoint transfer.

This function should should read data from OUT endpoint. This function is not required and NULL could be pinned to this handler when class doesn't have OUT endpoint.

Parameters

[in]

p_inst

Class instance.

Returns

Standard error code.

ret_code_t(* app_usbd_hid_methods_t::on_get_report)(app_usbd_class_inst_t const *p_inst, app_usbd_setup_evt_t const *p_setup_ev)

Function called on HID specific, GetReport request.

This function should trigger data write to control pipe.

Parameters

[in]	p_inst	Class instance.
[in]	p_setup_ev	Setup event.

Returns

Standard error code.

ret_code_t(* app_usbd_hid_methods_t::on_idle)(app_usbd_class_inst_t const *p_inst, uint8_t report_id)

Function called on idle transfer.

This function should trigger next idle transfer.

Parameters

[in,out]	p_inst	Instance of the class.
[in]	report_id	Number of report ID that needs idle transfer.

Returns

Standard error code.

ret_code_t(* app_usbd_hid_methods_t::on_set_report)(app_usbd_class_inst_t const *p_inst, app_usbd_setup_evt_t const *p_setup_ev)

Function called on HID specific, SetReport request.

This function should trigger data read from control pipe. This function is not required and NULL could be pinned to this handler when output report is not defined in report descriptor.

Parameters

[in]	p_inst	Class instance.
[in]	p_setup_ev	Setup event.

Returns

Standard error code.

uint8_t(* app_usbd_hid_methods_t::subclass_count)(app_usbd_class_inst_t const *p_inst)

Function returns subclass descriptor count.

Parameters

[in]

p_inst

Class instance.

Returns

Count of descriptors

const uint8_t*(* app_usbd_hid_methods_t::subclass_data)(app_usbd_class_inst_t const *p_inst, uint8_t desc_num, uint32_t cur_byte)

Function returns pointer to subclass descriptor data.

Parameters

[in]	p_inst	Class instance.
[in]	desc_num	Index of the subclass descriptor
[in]	cur_byte	Index of required byte

Returns

Pointer to requested byte in subclass descriptor

size_t(* app_usbd_hid_methods_t::subclass_length)(app_usbd_class_inst_t const *p_inst, uint8_t desc_num)

Function returns subclass descriptor size.

Parameters

[in]	p_inst	Class instance.
[in]	desc_num	Index of the subclass descriptor

Returns

Size of descriptor

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The documentation for this struct was generated from the following file:

• components/libraries/usbd/class/hid/app_usbd_hid.h