Constant lpc55_hal::drivers::usbd::constants::NUM_ENDPOINTS

pub const NUM_ENDPOINTS: usize = 1 + 5; // 0x0_000_000_000_000_006usize

Number of logical endpoints, including control

Despite the UM claiming that USB FS has 1 + 4 and USB HS has 1 + 5, even the FS supports 1 + 5 endpoints.