Method from_bytes

bleps/src/command.rs:31–36

(bytes: &[u8])

impl CommandHeader {
    pub fn from_bytes(bytes: &[u8]) -> CommandHeader {
        CommandHeader {
            opcode: ((bytes[1] as u16) << 8) + bytes[0] as u16,
            len: bytes[2],
        }
    }

    pub fn from_ogf_ocf(ogf: u8, ocf: u16, len: u8) -> CommandHeader {
        let opcode = opcode(ogf, ocf);