zircon/vdso/ioports.fidl

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library zx;

@transport("Syscall")
protocol ioports {
    /// Rights: resource must have resource kind ZX_RSRC_KIND_IOPORT.
    ioports_request(resource struct {
        resource handle:RESOURCE;
        io_addr uint16;
        len uint32;
    }) -> (struct {
        status status;
    });

    /// Rights: resource must have resource kind ZX_RSRC_KIND_IOPORT.
    ioports_release(resource struct {
        resource handle:RESOURCE;
        io_addr uint16;
        len uint32;
    }) -> (struct {
        status status;
    });
};