| // Copyright 2023 The ChromiumOS Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef RUNTIME_PROBE_UTILS_BUS_UTILS_H_ |
| #define RUNTIME_PROBE_UTILS_BUS_UTILS_H_ |
| |
| #include <optional> |
| |
| #include <base/files/file_path.h> |
| #include <base/values.h> |
| |
| namespace runtime_probe { |
| |
| // Probes the bus info from a sysfs device path. This is designed for the |
| // sysfs subsystem /sys/class/*. For example: /sys/class/net/eth0. This function |
| // probes the sysfs subsystem /sys/bus/* which is linked to |
| // `{node_path}/device`. The return values depend on the bus type. This supports |
| // pci, usb and sdio. |
| std::optional<base::Value> GetDeviceBusDataFromSysfsNode( |
| const base::FilePath& node_path); |
| |
| } // namespace runtime_probe |
| |
| #endif // RUNTIME_PROBE_UTILS_BUS_UTILS_H_ |
