39.2.1.16 usb_h_pipe_set_control_param

Modify parameters of an allocated control pipe.

static int32_t usb_h_pipe_set_control_param(
    struct usb_h_pipe * pipe,
    uint8_t dev,
    uint8_t ep,
    uint16_t max_pkt_size,
    uint8_t speed
)

Parameters

pipe

Type: struct usb_h_pipe *

The pipe

dev

Type: uint8_t

The device address

ep

Type: uint8_t

The endpoint address

max_pkt_size

Type: uint16_t

The maximum packet size, must be equal or less than the allocated size

speed

Type: uint8_t

The working speed

Returns

Type: int32_t

Operation result status

ERR_NOT_INITIALIZED

The pipe is not allocated

ERR_BUSY

The pipe is busy transferring

ERR_INVALID_ARG

Argument error

ERR_UNSUPPORTED_OP

The pipe is not control pipe

ERR_NONE

The operation is done successfully