DeviceIoControl

    pub const DeviceIoControl = switch (builtin.os.tag) {
        .wasi => noreturn,
        .windows => struct {
            file: File,
            code: std.os.windows.CTL_CODE,
            in: []const u8 = &.{},
            out: []u8 = &.{},

            pub const Result = std.os.windows.IO_STATUS_BLOCK;
        },
        else => struct {
            file: File,
            /// Device-dependent operation code.
            code: u32,
            arg: ?*anyopaque,

            /// Device and operation dependent result. Negative values are
            /// negative errno.
            pub const Result = i32;
        },
    }