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set: Add setfdSetSettingsItemValue and setfdResetSettingsItemValue #735

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set: Add setfdSetSettingsItemValue and setfdResetSettingsItemValue #735

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22 changes: 22 additions & 0 deletions nx/include/switch/services/set.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2624,3 +2624,25 @@ Result setcalGetDeviceId(u64 *out_device_id);
* @param[out] out_type Output ConsoleSixAxisSensorMountType.
*/
Result setcalGetConsoleSixAxisSensorMountType(u8 *out_type);

// Initialize setfd.

@yellows8 yellows8 Jul 28, 2026

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Add comment: [4.0.0+] Only exposed if in development mode.

Result setfdInitialize(void);

// Exit setfd.
void setfdExit(void);

/**
* @brief Sets the value of a settings item.
* @param name Name string.
* @param item_key Item key string.
* @param value_in Pointer to input value.
* @param value_in_size Size of the value_in buffer.
*/
Result setfdSetSettingsItemValue(const char *name, const char *item_key, const void *value_in, s64 value_in_size);

/**
* @brief Resets the value of a settings item.
* @param name Name string.
* @param item_key Item key string.
*/
Result setfdResetSettingsItemValue(const char *name, const char *item_key);
55 changes: 55 additions & 0 deletions nx/source/services/set.c
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
static Service g_setSrv;
static Service g_setsysSrv;
static Service g_setcalSrv;
static Service g_setfdSrv;

static bool g_setLanguageCodesInitialized;
static u64 g_setLanguageCodes[0x40];
Expand Down Expand Up @@ -55,6 +56,16 @@ void _setcalCleanup(void) {
serviceClose(&g_setcalSrv);
}

NX_GENERATE_SERVICE_GUARD(setfd);

Result _setfdInitialize(void) {
return smGetService(&g_setfdSrv, "set:fd");
}

void _setfdCleanup(void) {
serviceClose(&g_setfdSrv);
}

Service* setcalGetServiceSession(void) {
return &g_setcalSrv;
}
Expand Down Expand Up @@ -1823,3 +1834,47 @@ Result setcalGetConsoleSixAxisSensorMountType(u8 *out_type) {

return _setCmdNoInOutU8(&g_setcalSrv, out_type, 43);
}

Result setfdSetSettingsItemValue(const char *name, const char *item_key, const void *value_in, s64 value_in_size) {
char send_name[SET_MAX_NAME_SIZE];
char send_item_key[SET_MAX_NAME_SIZE];

memset(send_name, 0, SET_MAX_NAME_SIZE);
memset(send_item_key, 0, SET_MAX_NAME_SIZE);
strncpy(send_name, name, SET_MAX_NAME_SIZE-1);
strncpy(send_item_key, item_key, SET_MAX_NAME_SIZE-1);

return serviceDispatch(&g_setfdSrv, 2,
.buffer_attrs = {
SfBufferAttr_HipcPointer | SfBufferAttr_In,
SfBufferAttr_HipcPointer | SfBufferAttr_In,
SfBufferAttr_HipcMapAlias | SfBufferAttr_In,
},
.buffers = {
{ send_name, SET_MAX_NAME_SIZE },
{ send_item_key, SET_MAX_NAME_SIZE },
{ item_key, value_in_size },
}
);
}

Result setfdResetSettingsItemValue(const char *name, const char *item_key) {
char send_name[SET_MAX_NAME_SIZE];
char send_item_key[SET_MAX_NAME_SIZE];

memset(send_name, 0, SET_MAX_NAME_SIZE);
memset(send_item_key, 0, SET_MAX_NAME_SIZE);
strncpy(send_name, name, SET_MAX_NAME_SIZE-1);
strncpy(send_item_key, item_key, SET_MAX_NAME_SIZE-1);

return serviceDispatch(&g_setfdSrv, 3,
.buffer_attrs = {
SfBufferAttr_HipcPointer | SfBufferAttr_In,
SfBufferAttr_HipcPointer | SfBufferAttr_In
},
.buffers = {
{ send_name, SET_MAX_NAME_SIZE },
{ send_item_key, SET_MAX_NAME_SIZE },
}
);
}