Basic sysfs support to read temp and read/write fan speed for amd-gpu-pro

include/folder.h

@@ -31,6 +31,8 @@ int sort_by_stringptr (const void *p1, const void *p2);
 
 int count_dictionaries (char **dictionary_files);
 
+char *first_file_in_directory (const char *path);
+
 char **scan_directory (hashcat_ctx_t *hashcat_ctx, const char *path);
 
 int  folder_config_init    (hashcat_ctx_t *hashcat_ctx, MAYBE_UNUSED const char *install_folder, MAYBE_UNUSED const char *shared_folder);

include/hwmon.h

@@ -3,6 +3,8 @@
  * License.....: MIT
  */
 
+#include <errno.h>
+
 #ifndef _HWMON_H
 #define _HWMON_H
 
@@ -19,6 +21,7 @@ int hm_get_throttle_with_device_id           (hashcat_ctx_t *hashcat_ctx, const
 int hm_set_fanspeed_with_device_id_adl       (hashcat_ctx_t *hashcat_ctx, const u32 device_id, const int fanspeed, const int fanpolicy);
 int hm_set_fanspeed_with_device_id_nvapi     (hashcat_ctx_t *hashcat_ctx, const u32 device_id, const int fanspeed, const int fanpolicy);
 int hm_set_fanspeed_with_device_id_xnvctrl   (hashcat_ctx_t *hashcat_ctx, const u32 device_id, const int fanspeed);
+int hm_set_fanspeed_with_device_id_sysfs     (hashcat_ctx_t *hashcat_ctx, const u32 device_id, const int fanspeed);
 
 int  hwmon_ctx_init    (hashcat_ctx_t *hashcat_ctx);
 void hwmon_ctx_destroy (hashcat_ctx_t *hashcat_ctx);

include/types.h

@@ -1046,6 +1046,7 @@ typedef struct opencl_ctx
   bool                need_nvml;
   bool                need_nvapi;
   bool                need_xnvctrl;
+  bool                need_sysfs;
 
   int                 force_jit_compilation;
 
@@ -1055,6 +1056,7 @@ typedef struct opencl_ctx
 #include "ext_nvapi.h"
 #include "ext_nvml.h"
 #include "ext_xnvctrl.h"
+#include "ext_sysfs.h"
 
 typedef struct hm_attrs
 {
@@ -1062,6 +1064,7 @@ typedef struct hm_attrs
   HM_ADAPTER_NVML    nvml;
   HM_ADAPTER_NVAPI   nvapi;
   HM_ADAPTER_XNVCTRL xnvctrl;
+  HM_ADAPTER_SYSFS   sysfs;
 
   int od_version;
 
@@ -1078,6 +1081,7 @@ typedef struct hwmon_ctx
   void *hm_nvml;
   void *hm_nvapi;
   void *hm_xnvctrl;
+  void *hm_sysfs;
 
   hm_attrs_t *hm_device;