Description
Write data to device over the specified pipe.
Files
usbdev_api.cs
Prototype
Arguments
pipe
Pipe handle.
p_buf
Pointer to transmit buffer.
buf_len
Transmit buffer length.
end
End-of-transfer flag (see Note #1).
timeout
Timeout in milliseconds. A value of 0 indicates a wait forever.
p_err
Pointer to variable that will receive the return error code from this function:
ERROR_SUCCESS
ERROR_INVALID_HANDLE
ERROR_INVALID_USER_BUFFER
ERROR_BAD_PIPE
ERROR_INVALID_PARAMETER
ERROR_NOT_ENOUGH_MEMORY
ERROR_SEM_TIMEOUT
Returned Value
Number of bytes written, if NO error(s).
0, otherwise.
Callers
Application.
Notes / Warnings
If end-of-transfer is set and transfer length is multiple of maximum packet size, a zero-length packet is transferred to indicate a short transfer to the device.