diff --git a/Userland/Utilities/lsusb.cpp b/Userland/Utilities/lsusb.cpp new file mode 100644 index 0000000000..3859e064c7 --- /dev/null +++ b/Userland/Utilities/lsusb.cpp @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2021, Jesse Buhagiar + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +int main(int argc, char** argv) +{ + if (pledge("stdio rpath", nullptr) < 0) { + perror("pledge"); + return 1; + } + + if (unveil("/proc/bus/usb", "r") < 0) { + perror("unveil"); + return 1; + } + + if (unveil(nullptr, nullptr) < 0) { + perror("unveil"); + return 1; + } + + Core::ArgsParser args; + args.set_general_help("List USB devices."); + args.parse(argc, argv); + + Core::DirIterator usb_devices("/proc/bus/usb", Core::DirIterator::SkipDots); + + while (usb_devices.has_next()) { + auto full_path = LexicalPath(usb_devices.next_full_path()); + + auto proc_usb_device = Core::File::construct(full_path.string()); + auto bus_id = proc_usb_device->filename().split('/').last(); + if (!proc_usb_device->open(Core::OpenMode::ReadOnly)) { + warnln("Failed to open {}: {}", proc_usb_device->name(), proc_usb_device->error_string()); + continue; + } + + auto contents = proc_usb_device->read_all(); + auto json = JsonValue::from_string(contents); + VERIFY(json.has_value()); + + json.value().as_array().for_each([bus_id](auto& value) { + auto& device_descriptor = value.as_object(); + + auto vendor_id = device_descriptor.get("vendor_id").to_u32(); + auto product_id = device_descriptor.get("product_id").to_u32(); + + outln("Device {}: ID {:04x}:{:04x}", bus_id, vendor_id, product_id); + }); + } + + return 0; +}