# syspara Module - [Available APIs](#section775916468231) - [How to Use](#section118404913233) This module provides the functions of obtaining and setting system attributes. It can be used on the Hi3861, Hi3516D V300 and Hi3518E V300 platforms powered by LiteOS Cortex-M and LiteOS Cortex-A. Supported system attributes consist of default, OEM-specified, and custom system attributes. OEM-specified system attributes provide only default values. The specific values need to be adjusted as required. ## Available APIs **Table 1** APIs for the syspara module

API

Description

int GetParameter(const char* key, const char* def, char* value, unsigned int len)

Obtains a system parameter.

int SetParameter(const char* key, const char* value)

Sets or updates a system parameter.

char* GetProductType(void)

Obtains the device type.

char* GetManufacture(void)

Obtains the device manufacturer.

char* GetBrand(void)

Obtains the device brand.

char* GetMarketName(void)

Obtains the device marketing name.

char* GetProductSeries(void)

Obtains the device series name.

char* GetProductModel(void)

Obtains the device authentication model.

char* GetSoftwareModel(void)

Obtains the device software model.

char* GetHardwareModel(void)

Obtains the device hardware model.

char* GetHardwareProfile(void)

Obtains the device hardware profile.

char* GetSerial(void)

Obtains the device serial number (SN).

char* GetOsName(void)

Obtains the operating system name.

char* GetDisplayVersion(void)

Obtains the software version visible to users.

char* GetBootloaderVersion(void)

Obtains the bootloader version of this device.

char* GetSecurityPatchTag(void)

Obtains the security patch tag.

char* GetAbiList(void)

Obtains the list of application binary interfaces (ABIs) supported on this device.

char* GetSdkApiLevel(void)

Obtains the SDK API level that matches the current system software.

char* GetFirstApiLevel(void)

Obtains the first SDK API level of the system software.

char* GetIncrementalVersion(void)

Obtains the incremental version.

char* GetVersionId(void)

Obtains the version ID.

char* GetBuildType(void)

Obtains the build type.

char* GetBuildUser(void)

Obtains the build account user name.

char* GetBuildHost(void)

Obtains the build host name.

char* GetBuildTime(void)

Obtains the build time.

char* GetBuildRootHash(void)

Obtains the buildroot hash value of this version.
## How to Use The following is an example of using syspara. ``` // set && get char key1[] = "rw.sys.version"; char value1[] = "10.1.0"; int ret = SetParameter(key1, value1); char valueGet1[128] = {0}; ret = GetParameter(key1, "version=10.1.0", valueGet1, 128); // get sysparm char* value1 = GetProductType(); printf("Product type =%s\n", value1); free(value1); char* value2 = GetManufacture(); printf("Manufacture =%s\n", value2); free(value2); char* value3 = GetBrand(); printf("GetBrand =%s\n", value3); free(value3); char* value4 = GetMarketName(); printf("MarketName =%s\n", value4); free(value4); char* value5 = GetProductSeries(); printf("ProductSeries =%s\n", value5); free(value5); char* value6 = GetProductModel(); printf("ProductModel =%s\n", value6); free(value6); char* value7 = GetSoftwareModel(); printf("SoftwareModel =%s\n", value7); free(value7); char* value8 = GetHardwareModel(); printf("HardwareModel =%s\n", value8); free(value8); char* value9 = GetHardwareProfile(); printf("Software profile =%s\n", value9); free(value9); char* value10 = GetSerial(); printf("Serial =%s\n", value10); free(value10); char* value11 = GetOsName(); printf("OS name =%s\n", value11); free(value11); char* value12 = GetDisplayVersion(); printf("Display version =%s\n", value12); free(value12); char* value13 = GetBootloaderVersion(); printf("bootloader version =%s\n", value13); free(value13); char* value14 = GetSecurityPatchTag(); printf("secure patch level =%s\n", value14); free(value14); char* value15 = GetAbiList(); printf("abi list =%s\n", value15); free(value15); char* value16 = GetFirstApiLevel(); printf("first api level =%s\n", value16); free(value16); char* value17 = GetIncrementalVersion(); printf("Incremental version = %s\n", value17); free(value17); char* value187 = GetVersionId(); printf("formal id =%s\n", value187); free(value187); char* value18 = GetBuildType(); printf("build type =%s\n", value18); free(value18); char* value19 = GetBuildUser(); printf("build user =%s\n", value19); free(value19); char* value20 = GetBuildHost(); printf("Build host = %s\n", value20); free(value20); char* value21 = GetBuildTime(); printf("build time =%s\n", value21); free(value21); char* value22 = GetBuildRootHash(); printf("build root later..., %s\n", value22); free(value22); ```