---
name: "Tspi_Context_GetCapability"
section: "3"
platform: "linux"
package: "libtspi-dev"
version: "0.3.15-0.4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Tspi_Context_GetCapability"
---

# Tspi\_Context\_GetCapability(3)

provide the capabilities of a TSS Core Service, TSS Service Provider, or TPM.

## NAME

Tspi\_Context\_GetCapability - provide the capabilities of a TSS Core Service, TSS Service Provider, or TPM.

## SYNOPSIS

```
#include <tss/platform.h>
#include <tss/tcpa_defines.h>
#include <tss/tcpa_typedef.h>
#include <tss/tcpa_struct.h>
#include <tss/tss_typedef.h>
#include <tss/tss_structs.h>
#include <tss/tspi.h>

TSS_RESULT Tspi_Context_GetCapability(TSS_HCONTEXT hContext,          TSS_FLAG capArea,
                                      UINT32       ulSubCapLength,    BYTE*    rgbSubCap,
                                      UINT32*      pulRespDataLength, BYTE**   prgbRespData);
```

## DESCRIPTION

**TSS\_Context\_GetCapability**  provides the capabilities of the TSS Core Service or TSS Service Provider

## PARAMETERS

### hContext

The handle of the context object.

### capArea

Flag indicating the attribute to query.

### ulSubCapLength

The length (in bytes) of the rgbSubCap parameter.

### rgbSubCap

Data indicating the attribute to query.

### pulRespDataLength

Recieves the length (in bytes) of the prgbRespData parameter.

### prgbRespData

On successful completion of the command, this parameter points to a buffer containing the actual data of the specified capability.

## RETURN CODES

**Tspi\_Context\_GetCapability** returns TSS\_SUCCESS on success, otherwise one of the following values are returned:

- TSS\_E\_INVALID\_HANDLE - *hContext* is an invalid handle.

  - TSS\_E\_BAD\_PARAMETER - One of the parameters did not match.

  - TSS\_E\_INTERNAL\_ERROR - An error occurred internal to the TSS.

  ## CONFORMING TO

**Tspi\_Context\_GetCapability** conforms to the Trusted Computing Group Software Specification version 1.1 Golden

## SEE ALSO

**(none)**.