USBD_HID_Rd

Owned by Former user (Deleted)
Last updated: Dec 03, 2020 by WES Admin
1 min read

Description

Receives data from the host through an interrupt OUT endpoint.

Files

usbd_hid.h/usbd_hid.c

Prototype

CPU_INT32U  USBD_HID_Rd (CPU_INT08U   class_nbr,
                         void        *p_buf,
                         CPU_INT32U   buf_len,
                         CPU_INT16U   timeout,
                         USBD_ERR    *p_err);


Arguments

class_nbr

Class instance number.

p_buf

Pointer to receive buffer.

buf_len

Receive buffer length, in octets.

timeout

Timeout, in milliseconds.

p_err

Pointer to variable that will receive the return error code from this function.

USBD_ERR_NONE
USBD_ERR_NULL_PTR
USBD_ERR_INVALID_ARG
USBD_ERR_INVALID_CLASS_STATE
USBD_ERR_DEV_INVALID_NBR
USBD_ERR_EP_INVALID_NBR
USBD_ERR_DEV_INVALID_STATE
USBD_ERR_EP_INVALID_TYPE

Returned Value

Number of octets received, if NO error(s).

0, otherwise.

Callers

Application.

Notes / Warnings

None.