> For the complete documentation index, see [llms.txt](https://sandbox-docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sandbox-docs.verifone.com/adk-5.0-programmers-guide/readme/modules/group__sdisystem.md).
# System interface
[Data Structures](#nested-classes) | [Functions](#func-members)
| | |
| --------------- | ----------------------------------------------------------------------------------- |
| Data Structures | |
| struct | [SDIClient::ComponentVersion](#structvfisdi_1_1_s_d_i_client_1_1_component_version) |
| | |
| --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Functions | |
| int | [sysAbort](#gaaa584883946486751113f98b317623df) () |
| int | [sysGetConfig](#ga7f25a798b839c063cbd06d44e0313613) (const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&req, [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&out) |
| int | [sysGetCPUID](#gaf233502e71652c8d51917e15bc22a7e8) (std::string \&id) |
| int | [sysGetSerialNumber](#ga86c99be3edd67ee31ae80ebcd610aab0) (std::string \&sn) |
| int | [sysGetBootSoftwareID](#gae02f6e7a29647f0c172d4321370cecf0) (std::string \&id) |
| int | [sysGetApplicationSoftwareID](#gac2ec2c92bfb5beba8b26b7063798f292) (std::string \&id) |
| int | [sysGetHardwareID](#ga49b22bbb731a1d9d16c0ca99802e1254) (std::string \&id) |
| int | [sysGetIFMID](#gaf95a9d826bd2aeb89d1fb943e2ea3fce) (std::string \&id) |
| int | [sysGetEMVL2ID](#gafa12882d0135fa7897f2f64982c33320) (std::string \&id) |
| int | [sysGetStatus](#ga8b4f5e6d6d12cf5760153114bc3d371f) (const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&req, [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&out) |
| int | [sysGetDateTime](#ga41e7b1518505a9f0a34253a57c3e597f) (unsigned short \&year, unsigned char \&month, unsigned char \&day, unsigned char \&hour, unsigned char \&minute, unsigned char \&second) |
| int | [sysGetTamperStatus](#gaab4470413c2c1cbdf6a25cca76795cfa) ([Array](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/structvfisdi_1_1_array.md)< 9 > \&tamper) |
| int | [sysGetBatteryStatus](#gacd3edebd1174d3398320769e6208a50c) (unsigned char \&charge\_level, unsigned char \&charge\_status) |
| int | [sysGetBatteryVoltage](#ga21ec43a34504219da1656b945530b231) (unsigned short \&voltage) |
| int | [sysGetLanguage](#ga5bfe0a8a267e7e674283b92e05de3cce) (enum [Language](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a315ca917ad583797f709ea477dd28705) \&language) |
| int | [sysGetCVVDeactivation](#ga4f956cba60843a3b06d425f49fcd09d1) (unsigned char \&cfg) |
| int | [sysGetCardEntryMode](#ga3fb40f1c66989d42fa78b046caa0b342) (unsigned char \&mode) |
| int | [sysSetDateTime](#ga2e7b93e265700b9d778b01c11b95fe5f) (unsigned short year, unsigned char month, unsigned char day, unsigned char hour, unsigned char minute, unsigned char second) |
| int | [sysSetLanguage](#gad78e48f51cb1c87de771a7ddd67b394e) (enum [Language](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a315ca917ad583797f709ea477dd28705) language) |
| int | [sysSetCVVDeactivation](#ga0ee790d0fb18e5083f51b13595cf497c) (unsigned char deactivate) |
| int | [sysSetCardEntryMode](#gab36d0bea0c486f3c6011bcb39e1f708c) (unsigned char mode) |
| int | [sysSetDisplayBacklight](#gaf0686bd5790182aa13c9bf357dcc7d7d) (unsigned char backlight) |
| int | [sysSetDisplayConstrast](#ga967e25786eab08f36a0c0898b596f897) (unsigned char contrast) |
| int | [sysGetKSN](#ga39444f5aad6fae3dcbc7ca49bb7f169a) ([KSNSelection](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#add4280440188ede2e1f6ea4397df6cfa) which, [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&out) |
| int | [sysAuthStep1](#ga5168e5e231b33ac39248376c92c84d83) (const [Array](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/structvfisdi_1_1_array.md)< 16 > \&hostRandom, [Array](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/structvfisdi_1_1_array.md)< 32 > \&serverData, [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&ksn) |
| int | [sysAuthStep2](#ga43f8cfaccb41c4b3e73ecacac524cc14) (const [Array](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/structvfisdi_1_1_array.md)< 32 > \&hostData, [Array](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/structvfisdi_1_1_array.md)< 32 > \&serverData) |
| int | [sysSetIdleText](#gaaaf5929f91bcc56ce5e0c4e930b3eed6) (const std::string \&text) |
| int | [sysClearIdleText](#gabb0e1911d5072f1a3d14b313501d0a11) () |
| int | [sysUploadBegin](#ga9f6703b20083d77a2bc09ae3e8741771) (const std::string \&filename, [SYSUploadType](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#af55973ce01a27acae146f17b4a0366fa) type=[SYS\_UPLOAD\_SOFTWARE\_UPDATE](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#af55973ce01a27acae146f17b4a0366faa45f06815e16da88212b9ee5ed2f3ddc8), int dest=1) |
| int | [sysUploadData](#gacba3dc1703d99fc2d4b7a5b763f2da10) (const void \*packet, unsigned size, int packet\_no, int dest=1) |
| int | [sysUploadEnd](#ga8ab36922e973801b2b45803208c0c4f9) (const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \*md5=0, const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \*mac=0, int dest=1) |
| int | [sysUpload](#ga358df855cbad214ec3340bb976dff4d9) (const std::string \&filename, const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&data, [SYSUploadType](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#af55973ce01a27acae146f17b4a0366fa) type=[SYS\_UPLOAD\_SOFTWARE\_UPDATE](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#af55973ce01a27acae146f17b4a0366faa45f06815e16da88212b9ee5ed2f3ddc8), const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \*md5=0, const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \*mac=0, int dest=1) |
| int | [sysShutdown](#ga014fa2a5e800e62c61ce747292407e59) () |
| int | [sysReboot](#ga87aee721c6d116ee2f974db6efe85fe7) () |
| int | [sysSleep](#ga52a26c8a62e227a00ec702bb9b3b2082) () |
| int | [sysHibernate](#ga0660fa6f7eecf4b5925d312333e358a4) () |
| int | [sysShowMACDesktop](#ga4f3eacc3478548919e6a19cd20c5bf5d) () |
| int | [sysSetPropertyString](#gaa90a2a61e90239e655f5798fe8138929) (int property, const std::string \&in, int dest=1) |
| int | [sysSetPropertyInt](#ga7c674016f7f7360cad04c180a9a2f687) (int property, int in, int dest=1) |
| int | [sysGetPropertyString](#gacc125e4c576a0e8d19bf03df8c198904) (int property, std::string \&out, int dest=1) |
| int | [sysGetPropertyInt](#ga37e6626374e1fcd0e155ce8479c2ae68) (int property, int \&out, int dest=1) |
| int | [sysInstallSponsorCert](#ga7f438fca0104c137edee4cdd3d5e22ae) (const [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&cert) |
| int | [sysGetSDIVersion](#ga5bb253079c8feedc3ae93c855f721a15) (std::vector< [ComponentVersion](#structvfisdi_1_1_s_d_i_client_1_1_component_version) > \&info, unsigned char device=1) |
| int | [sysInstallUpdate](#ga1782bace2e44b08df3f5bf98fa7e8e5f) ([SYSUpdateType](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#ae85b937298c01c4202810ff9a3133b11) type) |
| int | [sysInstallResult](#ga38ac875ac5b4276dd3e6d3ba229c58b9) (std::string \&result, unsigned char device=1) |
| int | [sysEnableEPP](#gadb6da218490ec0f55e357550362a7eb9) (bool enable) |
| int | [sysFactoryReset](#gaf6cffadf0636bda10038b2569e76719a) () |
| int | [sysReadCert](#ga2d26df79f3db64673a382881b653fcf5) (const std::string \&name, [bytevector](https://github.com/verifoneone/verifone-git-book-adk/tree/ADK5.0_staging/classvfisdi_1_1_s_d_i_client.md#a64b5be62be31dcda165d2c6c3c262fb5) \&cert) |
| int | [sysSetCurrencyDisplay](#gaca65ca02efc350a8ac4537dbdf32ca50) (enum [Currency](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a59f74bf9ae55ffd390b8806b2559021c) currency, enum [CurrencyDisplay](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#ac8c9a7e6b9069dbf93c0520716472812) display) |
### DetailedDescription
***
### DataStructure Documentation
### vfisdi::SDIClient::ComponentVersion
struct vfisdi::SDIClient::ComponentVersion
component version information
| | | |
| ----------- | ------- | --------------------- |
| Data Fields | | |
| string | name | name of the component |
| string | version | version information |
### FunctionDocumentation
### sysAbort()
int sysAbort
abort the current command in progress (20-02)
{% hint style="info" %}
Not all commands can be aborted.
{% endhint %}
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysAuthStep1()
int sysAuthStep1
mutual auth and session key setup step 1 (20-11)
**Parameters**
\[in] **hostRandom** host random number \[out] **serverData** encrypted SDI server data. After decryption contains 16 bytes SDI server token and 16 bytes SDI server random number \[out] **ksn** key serial number
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysAuthStep2()
int sysAuthStep2
mutual auth and session key setup step 2 (20-11)
**Parameters**
\[in] **hostData** encrypted host data \[out] **serverData** encrypted SDI server data. After decryption contains 16 bytes host token and 16 bytes SDI server serial number
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysClearIdleText()
int sysClearIdleText
clear the idle text (20-13)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysEnableEPP()
int sysEnableEPP
Enable EPP (20-21)
**Parameters**
\[in] **enable** if true enable EPP, else disable
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysFactoryReset()
int sysFactoryReset
Trigger factory reset (20-22)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetApplicationSoftwareID()
int sysGetApplicationSoftwareID
Read application software ID (20-03)
**Parameters**
\[out] **id** ID
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetBatteryStatus()
int sysGetBatteryStatus
Get battery status
**Parameters**
\[out] **charge\_level** charge level in percent \[out] **charge\_status** charge\_status: 0: in progress, 1: finished, 2: suspended, 3: error
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetBatteryVoltage()
int sysGetBatteryVoltage
Get battery voltage (20-04)
**Parameters**
\[out] **voltage** battery voltage
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetBootSoftwareID()
int sysGetBootSoftwareID
Read boot software ID (20-03)
**Parameters**
\[out] **id** ID
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetCardEntryMode()
int sysGetCardEntryMode
Get card entry mode (20-04)
**Parameters**
\[out] **mode** card entry mode
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetConfig()
int sysGetConfig
Read configuration parameters. Check the SDI server documentation for details about the DOL and COL format. (20-03)
**Parameters**
\[in] **req** read request in DOL or COL format \[out] **out** requested configuration parameters
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetCPUID()
int sysGetCPUID
Read CPU unique ID (20-03)
**Parameters**
\[out] **id** ID
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetCVVDeactivation()
int sysGetCVVDeactivation
Get CVV deactivation (20-04)
**Parameters**
\[out] **cfg** Card Entry Value Deactivation
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetDateTime()
int sysGetDateTime
Get date and time (20-04)
**Parameters**
\[out] **year** year including century (e.g. 2020) \[out] **month** month (1..12) \[out] **day** day (1..31) \[out] **hour** hour (0..23) \[out] **minute** minute (0..59) \[out] **second** second (0..59)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetEMVL2ID()
int sysGetEMVL2ID
Read EMV L2 ID (20-03)
**Parameters**
\[out] **id** ID
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetHardwareID()
int sysGetHardwareID
Read hardware ID (20-03)
**Parameters**
\[out] **id** ID
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetIFMID()
int sysGetIFMID
Read IFM ID (20-03)
**Parameters**
\[out] **id** ID
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetKSN()
int sysGetKSN
read the key serial number (20-10)
**Parameters**
\[in] **which** selects which KSN to read \[out] **out** read KSN
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetLanguage()
int sysGetLanguage
Get language (20-04)
**Parameters**
\[out] **language** language
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetPropertyInt()
int sysGetPropertyInt
read int property (20-1A)
**Parameters**
\[in] **property** property ID (SYSPropertyInt) \[out] **out** read property \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetPropertyString()
int sysGetPropertyString
read string property (20-1A)
**Parameters**
\[in] **property** property ID (SYSPropertyString) \[out] **out** read property \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetSDIVersion()
int sysGetSDIVersion
Get version information of basic SDI components and installed SDI plugins (20-1C)
**Parameters**
\[out] **info** array with component version information \[in] **device** device: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetSerialNumber()
int sysGetSerialNumber
Read serial number (20-03)
**Parameters**
\[out] **sn** serial number
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetStatus()
int sysGetStatus
Read device status information from PINPad (20-04)
**Parameters**
\[in] **req** read request in DOL or COL format \[out] **out** device status information
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysGetTamperStatus()
int sysGetTamperStatus
Get tamper status (20-04)
**Parameters**
\[out] **tamper** tamper status
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysHibernate()
int sysHibernate
set system to hibernate state (20-17)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysInstallResult()
int sysInstallResult
Get installation result (20-1E)
**Parameters**
\[out] **result** JSON string containing installation errors (DFA148) \[in] **device** device: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysInstallSponsorCert()
int sysInstallSponsorCert
install DER encoded X.509 certficate (20-1B)
**Parameters**
\[in] **cert** certificate
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysInstallUpdate()
int sysInstallUpdate
Install update, that has been uploaded before. (20-1D)
**Parameters**
\[in] **type** update type
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysReadCert()
int sysReadCert
read X509 certificate from keystore (20-23)
**Parameters**
\[in] **name** certificate name \[out] **cert** certificate in DER format
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysReboot()
int sysReboot
perform system reboot (20-17)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetCardEntryMode()
int sysSetCardEntryMode
Set card entry mode (20-09)
**Parameters**
\[in] **mode** card entry mode
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetCurrencyDisplay()
int sysSetCurrencyDisplay
switch whether the currency is displayed using a symbol or an abbreviation for currencies that support it. This setting is persistent. (20-24)
**Parameters**
\[in] **currency** currency for which to change the setting \[in] **display** display configuration
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetCVVDeactivation()
int sysSetCVVDeactivation
Set CVV deactivation (20-09)
**Parameters**
\[in] **deactivate** deactivation value
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetDateTime()
int sysSetDateTime
Set date and time (20-09)
**Parameters**
\[in] **year** year including century (e.g. 2020) \[in] **month** month (1..12) \[in] **day** day (1..31) \[in] **hour** hour (0..23) \[in] **minute** minute (0..59) \[in] **second** second (0..59)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetDisplayBacklight()
int sysSetDisplayBacklight
Set display backlight (20-09)
**Parameters**
\[in] **backlight** backlight
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetDisplayConstrast()
int sysSetDisplayConstrast
Set display contrast (20-09)
**Parameters**
\[in] **contrast** contrast
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetIdleText()
int sysSetIdleText
set the idle text (20-13)
**Parameters**
\[in] **text** idle text
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetLanguage()
int sysSetLanguage
Set language (20-09)
**Parameters**
\[in] **language** language
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetPropertyInt()
int sysSetPropertyInt
set int property (20-19)
**Parameters**
\[in] **property** property ID (SYSPropertyInt) \[in] **in** new property value \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSetPropertyString()
int sysSetPropertyString
set string property (20-19)
**Parameters**
\[in] **property** property ID (SYSPropertyString) \[in] **in** new property value \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysShowMACDesktop()
int sysShowMACDesktop
show MAC desktop (20-18)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysShutdown()
int sysShutdown
perform system shutdown (20-17)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysSleep()
int sysSleep
set system to sleep state (20-17)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysUpload()
int sysUpload
upload software or configuration, shortcut for sysUploadBegin/Data/End (20-14/20-15/20-16)
**Parameters**
\[in] **filename** filename including extension or empty string if not required \[in] **data** data to be uploaded, splitting into data chunks is performed internally \[in] **type** configuration file type \[in] **md5** optional MD5 checksum or NULL \[in] **mac** optional MAC or NULL \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysUploadBegin()
int sysUploadBegin
begin software or configuration package upload. (20-14)
**Parameters**
\[in] **filename** filename including extension (mandatory in case of software update) \[in] **type** configuration type \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
{% hint style="info" %}
After a successfull call to [sysUploadBegin()](#ga9f6703b20083d77a2bc09ae3e8741771), [sysUploadData()](#gacba3dc1703d99fc2d4b7a5b763f2da10) is used to transmit the data in chunks. [sysUploadEnd()](#ga8ab36922e973801b2b45803208c0c4f9) completes the upload. It must be invoked also if [sysUploadData()](#gacba3dc1703d99fc2d4b7a5b763f2da10) reports an error to clean up resources.
{% endhint %}
### sysUploadData()
int sysUploadData
upload data chunk (20-15)
**Parameters**
\[in] **packet** data chunk \[in] **size** chunk size, the maximum size depends on the protocol type \[in] **packet\_no** packet number. The first packet should be number 1 \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
### sysUploadEnd()
int sysUploadEnd
finalize software upload (20-16)
**Parameters**
\[in] **md5** optional MD5 checksum or NULL \[in] **mac** optional MAC or NULL \[in] **dest** display destination: countertop=1, EPP=2 (DFA150)
#### Returns
SDI error code ([Result](/adk-5.0-programmers-guide/readme/namespaces/namespacevfisdi.md#a28287671eaf7406afd604bd055ba4066))
---
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