feat: Add config parsing for profiles and layouts

This change adds new configuration parameters to support profile inputs
on Linux.

daemon/meson.build

@@ -54,6 +54,9 @@ exe_x52ctl = executable('x52ctl', 'x52ctl.c',
 install_data('x52d.conf',
   install_dir: join_paths(get_option('sysconfdir'), 'x52d'))
 
+install_subdir('layouts.d',
+  install_dir: join_paths(get_option('sysconfdir'), 'x52d'))
+
 test('daemon-communication', files('test_daemon_comm.py')[0],
   depends: [exe_x52d, exe_x52ctl], protocol: 'tap')
 

daemon/x52d.conf

@@ -120,6 +120,25 @@ CurveFactor=3
 # you to push more to get any motion out of the virtual mouse.
 Deadzone=0
 
+######################################################################
+# Layouts - only valid on Linux
+######################################################################
+[Layouts]
+
+# Directory containing .layout files (character → HID key recipes).
+Directory=/etc/x52d/layouts.d
+
+######################################################################
+# Keyboard (profile input mapping) - only valid on Linux
+######################################################################
+[Keyboard]
+
+# Base layout name: loads <Directory>/<DefaultKeymap>.layout
+DefaultKeymap=us
+
+# Enabled=no disables keyboard emulation from profiles (virtual keyboard).
+Enabled=yes
+
 ######################################################################
 # Profiles - only valid on Linux
 ######################################################################
@@ -139,6 +158,9 @@ ClutchEnabled=no
 # be held down to remain in clutch mode.
 ClutchLatched=no
 
+# Axis band hysteresis: expand/shrink band edges by this percentage (0-50).
+AxisHysteresisPercent=0
+
 ##################
 #X52 Input Servic#
 #Version 0.3.3   #

daemon/x52d_config.c

@@ -85,9 +85,13 @@ const char *x52d_config_get(const char *section, const char *key)
 /* Callback stubs
  * TODO: Remove the ones below when their implementation is complete
  */
+void x52d_cfg_set_Layouts_Directory(char *param) { (void)param; }
+void x52d_cfg_set_Keyboard_DefaultKeymap(char *param) { (void)param; }
+void x52d_cfg_set_Keyboard_Enabled(bool param) { (void)param; }
 void x52d_cfg_set_Profiles_Directory(char* param) { (void)param; }
 void x52d_cfg_set_Profiles_ClutchEnabled(bool param) { (void)param; }
 void x52d_cfg_set_Profiles_ClutchLatched(bool param) { (void)param; }
+void x52d_cfg_set_Profiles_AxisHysteresisPercent(int param) { (void)param; }
 
 void x52d_config_apply_immediate(const char *section, const char *key)
 {

daemon/x52d_config.def

@@ -91,6 +91,22 @@ CFG(Mouse, CurveFactor, mouse_curve_factor, int, 3)
 // Deadzone controls the deadzone range for the thumbstick
 CFG(Mouse, Deadzone, mouse_deadzone_factor, int, 0)
 
+/**********************************************************************
+ * Layouts - keyboard layout files (.layout), only valid on Linux
+ *********************************************************************/
+// Directory is the location of the folder containing layout maps
+// (e.g. us.layout for DefaultKeymap=us).
+CFG(Layouts, Directory, layouts_dir, string, /etc/x52d/layouts.d)
+
+/**********************************************************************
+ * Keyboard / profile input mapping - only valid on Linux
+ *********************************************************************/
+// DefaultKeymap selects layouts.d/<name>.layout (e.g. us -> us.layout).
+CFG(Keyboard, DefaultKeymap, default_keymap, string, us)
+
+// Enabled controls whether keyboard emulation from profiles is active.
+CFG(Keyboard, Enabled, keyboard_enabled, bool, true)
+
 /**********************************************************************
  * Profiles - only valid on Linux
  *********************************************************************/
@@ -105,4 +121,8 @@ CFG(Profiles, ClutchEnabled, clutch_enabled, bool, false)
 // be held down to remain in clutch mode.
 CFG(Profiles, ClutchLatched, clutch_latched, bool, false)
 
+// AxisHysteresisPercent expands axis band boundaries by this percentage (0-50)
+// to reduce chatter at band edges. Profiles may override per-profile.
+CFG(Profiles, AxisHysteresisPercent, axis_hysteresis_percent, axis_hysteresis, 0)
+
 #undef CFG

daemon/x52d_config.h

@@ -49,6 +49,10 @@ struct x52d_config {
     bool clutch_latched;
 
     char profiles_dir[NAME_MAX];
+    char layouts_dir[NAME_MAX];
+    char default_keymap[NAME_MAX];
+    bool keyboard_enabled;
+    int axis_hysteresis_percent;
 };
 
 /* Callback functions for configuration */
@@ -81,9 +85,13 @@ void x52d_cfg_set_Mouse_ReverseScroll(bool param);
 void x52d_cfg_set_Mouse_IsometricMode(bool param);
 void x52d_cfg_set_Mouse_CurveFactor(int param);
 void x52d_cfg_set_Mouse_Deadzone(int param);
+void x52d_cfg_set_Layouts_Directory(char *param);
+void x52d_cfg_set_Keyboard_DefaultKeymap(char *param);
+void x52d_cfg_set_Keyboard_Enabled(bool param);
 void x52d_cfg_set_Profiles_Directory(char* param);
 void x52d_cfg_set_Profiles_ClutchEnabled(bool param);
 void x52d_cfg_set_Profiles_ClutchLatched(bool param);
+void x52d_cfg_set_Profiles_AxisHysteresisPercent(int param);
 
 int x52d_config_process_kv(void *user, const char *section, const char *key, const char *value);
 const char *x52d_config_get_param(struct x52d_config *cfg, const char *section, const char *key);

daemon/x52d_config_dump.c

@@ -60,6 +60,11 @@ static const char * int_dumper(const char *section, const char *key, struct x52d
     return dump;
 }
 
+static const char * axis_hysteresis_dumper(const char *section, const char *key, struct x52d_config *cfg, size_t offset)
+{
+    return int_dumper(section, key, cfg, offset);
+}
+
 static const char * led_dumper(const char *section, const char *key, struct x52d_config *cfg, size_t offset)
 {
     CONFIG_PTR(libx52_led_state *, config);

daemon/x52d_config_parser.c

@@ -80,6 +80,23 @@ static int int_parser(struct x52d_config *cfg, size_t offset, const char *value)
     return 0;
 }
 
+static int axis_hysteresis_parser(struct x52d_config *cfg, size_t offset, const char *value)
+{
+    int rc;
+
+    rc = int_parser(cfg, offset, value);
+    if (rc != 0) {
+        return rc;
+    }
+
+    CONFIG_PTR(int *, config);
+    if (*config < 0 || *config > 50) {
+        return EINVAL;
+    }
+
+    return 0;
+}
+
 static int led_parser(struct x52d_config *cfg, size_t offset, const char *value)
 {
     CONFIG_PTR(libx52_led_state *, config);

daemon/x52d_const.h

@@ -15,6 +15,8 @@
 
 #define X52D_SYS_CFG_FILE   SYSCONFDIR "/" X52D_APP_NAME "/" X52D_APP_NAME ".conf"
 
+#define X52D_SYS_LAYOUTS_DIR   SYSCONFDIR "/" X52D_APP_NAME "/layouts.d"
+
 #define X52D_PID_FILE   RUNDIR "/" X52D_APP_NAME ".pid"
 
 #define X52D_SOCK_COMMAND   RUNDIR "/" X52D_APP_NAME ".cmd"

po/libx52.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libx52 0.3.3\n"
 "Report-Msgid-Bugs-To: https://github.com/nirenjan/libx52/issues\n"
-"POT-Creation-Date: 2026-04-01 20:47-0700\n"
+"POT-Creation-Date: 2026-04-02 23:18-0700\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -752,50 +752,50 @@ msgstr ""
 msgid "Error %d saving configuration file: %s"
 msgstr ""
 
-#: daemon/x52d_config_dump.c:108
+#: daemon/x52d_config_dump.c:113
 #, c-format
 msgid "Unable to save config file %s - code %d: %s"
 msgstr ""
 
-#: daemon/x52d_config_dump.c:126
+#: daemon/x52d_config_dump.c:131
 #, c-format
 msgid "Failed to dump %s.%s to config file %s"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:172
+#: daemon/x52d_config_parser.c:189
 #, c-format
 msgid "Ignoring unknown key '%s.%s'"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:213
+#: daemon/x52d_config_parser.c:230
 #, c-format
 msgid "Failed processing configuration file %s - code %d"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:243
+#: daemon/x52d_config_parser.c:260
 msgid "Failed to allocate memory for override structure"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:252
+#: daemon/x52d_config_parser.c:269
 msgid "Failed to allocate memory for override string"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:263
+#: daemon/x52d_config_parser.c:280
 #, c-format
 msgid "No section found in override string '%s'"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:277
+#: daemon/x52d_config_parser.c:294
 #, c-format
 msgid "No key found in override string '%s'"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:288
+#: daemon/x52d_config_parser.c:305
 #, c-format
 msgid "No value found in override string '%s'"
 msgstr ""
 
-#: daemon/x52d_config_parser.c:339
+#: daemon/x52d_config_parser.c:356
 #, c-format
 msgid "Error processing override '%s.%s=%s'"
 msgstr ""

po/xx_PL.po

@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libx52 0.2.3\n"
 "Report-Msgid-Bugs-To: https://github.com/nirenjan/libx52/issues\n"
-"POT-Creation-Date: 2026-04-01 20:47-0700\n"
+"POT-Creation-Date: 2026-04-02 23:18-0700\n"
 "PO-Revision-Date: 2026-04-01 20:50-0700\n"
 "Last-Translator: Nirenjan Krishnan <nirenjan@gmail.com>\n"
 "Language-Team: Dummy Language for testing i18n\n"
@@ -805,50 +805,50 @@ msgstr "Erroray %d ettingsay onfigurationcay efaultsday: %s"
 msgid "Error %d saving configuration file: %s"
 msgstr "Erroray %d avingsay onfigurationcay ilefay: %s"
 
-#: daemon/x52d_config_dump.c:108
+#: daemon/x52d_config_dump.c:113
 #, c-format
 msgid "Unable to save config file %s - code %d: %s"
 msgstr "Unableay otay avesay onfigcay ilefay %s - odecay %d: %s"
 
-#: daemon/x52d_config_dump.c:126
+#: daemon/x52d_config_dump.c:131
 #, c-format
 msgid "Failed to dump %s.%s to config file %s"
 msgstr "Ailedfay otay umpday %s.%s otay onfigcay ilefay %s"
 
-#: daemon/x52d_config_parser.c:172
+#: daemon/x52d_config_parser.c:189
 #, c-format
 msgid "Ignoring unknown key '%s.%s'"
 msgstr "Ignoringay unknownay eykay '%s.%s'"
 
-#: daemon/x52d_config_parser.c:213
+#: daemon/x52d_config_parser.c:230
 #, c-format
 msgid "Failed processing configuration file %s - code %d"
 msgstr "Ailedfay ocessingpray onfigurationcay ilefay %s - odecay %d"
 
-#: daemon/x52d_config_parser.c:243
+#: daemon/x52d_config_parser.c:260
 msgid "Failed to allocate memory for override structure"
 msgstr "Ailedfay otay allocateay emorymay orfay overrideay ucturestray"
 
-#: daemon/x52d_config_parser.c:252
+#: daemon/x52d_config_parser.c:269
 msgid "Failed to allocate memory for override string"
 msgstr "Ailedfay otay allocateay emorymay orfay overrideay ingstray"
 
-#: daemon/x52d_config_parser.c:263
+#: daemon/x52d_config_parser.c:280
 #, c-format
 msgid "No section found in override string '%s'"
 msgstr "Onay ectionsay oundfay inay overrideay ingstray '%s'"
 
-#: daemon/x52d_config_parser.c:277
+#: daemon/x52d_config_parser.c:294
 #, c-format
 msgid "No key found in override string '%s'"
 msgstr "Onay eykay oundfay inay overrideay ingstray '%s'"
 
-#: daemon/x52d_config_parser.c:288
+#: daemon/x52d_config_parser.c:305
 #, c-format
 msgid "No value found in override string '%s'"
 msgstr "Onay aluevay oundfay inay overrideay ingstray '%s'"
 
-#: daemon/x52d_config_parser.c:339
+#: daemon/x52d_config_parser.c:356
 #, c-format
 msgid "Error processing override '%s.%s=%s'"
 msgstr "Erroray ocessingpray overriday '%s.%s=%s'"