sysfs.hpp (75e56c67a10e9f4c617f9c72a87deb695322e212) sysfs.hpp (043d32306e00484afc446a44789b61869ea14f84)
1#pragma once
2
3#include <chrono>
4#include <exception>
5#include <fstream>
6#include <string>
7
1#pragma once
2
3#include <chrono>
4#include <exception>
5#include <fstream>
6#include <string>
7
8namespace sysfs {
8namespace sysfs
9{
9
10inline std::string make_sysfs_path(const std::string& path,
11 const std::string& type,
12 const std::string& id,
13 const std::string& entry)
14{
15 using namespace std::literals;
16
10
11inline std::string make_sysfs_path(const std::string& path,
12 const std::string& type,
13 const std::string& id,
14 const std::string& entry)
15{
16 using namespace std::literals;
17
17 if (entry.empty()) {
18 if (entry.empty())
19 {
18 return path + "/"s + type + id;
19 }
20
21 return path + "/"s + type + id + "_"s + entry;
22}
23
24/** @brief Return the path to the phandle file matching value in io-channels.
25 *

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30 * The 4 byte phandle value and 4 byte index value is read from io-channels.
31 * When a match is found, the path to the matching phandle file is returned.
32 *
33 * @param[in] iochanneldir - Path to file for getting phandle from io-channels
34 * @param[in] phandledir - Path to use for reading from phandle file
35 *
36 * @return Path to phandle file with value matching that in io-channels
37 */
20 return path + "/"s + type + id;
21 }
22
23 return path + "/"s + type + id + "_"s + entry;
24}
25
26/** @brief Return the path to the phandle file matching value in io-channels.
27 *

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32 * The 4 byte phandle value and 4 byte index value is read from io-channels.
33 * When a match is found, the path to the matching phandle file is returned.
34 *
35 * @param[in] iochanneldir - Path to file for getting phandle from io-channels
36 * @param[in] phandledir - Path to use for reading from phandle file
37 *
38 * @return Path to phandle file with value matching that in io-channels
39 */
38std::string findPhandleMatch(
39 const std::string& iochanneldir,
40 const std::string& phandledir);
40std::string findPhandleMatch(const std::string& iochanneldir,
41 const std::string& phandledir);
41
42/** @brief Find hwmon instances from an open-firmware device tree path
43 *
44 * Look for a matching hwmon instance given an
45 * open firmware device path.
46 *
47 * @param[in] ofNode- The open firmware device path.
48 *

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43/** @brief Find hwmon instances from an open-firmware device tree path
44 *
45 * Look for a matching hwmon instance given an
46 * open firmware device path.
47 *
48 * @param[in] ofNode- The open firmware device path.
49 *

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