macOS Get bytes per sector of Drive in MAC

[Nishad]

Hi all,

I am working in Cocoa - Objective C. My application need information of the system drive and the USBs(Ipod also) connected to the system, like Drive size, Bytes per sector, drive mounted path, serial number etc. I tried by reading ioregistry properties with a matching dictionary created using IOMediaclass and iokitframework and i am getting the size, mounted path serial number, product name except BYTES PER SECTOR.

Can anybody help me to get the bytes per sector of the drive or how can create matching dictionary which will give bytes per sector of the drive?


With thanks and regards
Nishad.

 

[tedsmith3rd]

I think IOMedia's getPreferredBlockSize yields the media's sector size. You might want to download the source code for darwin's IOStorageFamily to make sure.

 

[Sayer]

Ask Google next time. I got this as the first search for "IOKit bytes per secotor":

http://developer.apple.com/document...Kit/IOStorageDeviceCharacteristics/index.html