---
title: GetBlockSize
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsimultimediacommandsdevice/1576290-getblocksize
---

# GetBlockSize

## Declaration

```occ
bool GetBlockSize(UInt32 *requestedByteCount, SCSICmdField3Bit EXPECTED_SECTOR_TYPE, SCSICmdField1Bit SYNC, SCSICmdField2Bit HEADER_CODES, SCSICmdField1Bit USER_DATA, SCSICmdField1Bit EDC_ECC, SCSICmdField2Bit ERROR_FIELD, SCSICmdField3Bit SUBCHANNEL_SELECTION_BITS);
```