bDeviceType (BYTE)

Physical layout of the specified device.
• 48 TPI low-density diskette drive
  
• 96 TPI high-density diskette drive
  
• Small (3.5-inch) 720KB drive
  
• inch single-density diskette drive
  
• inch double-density diskette drive
  
• Fixed disk
  
• Tape drive
  
• Other (includes 1.44MB 3.5-inch diskette drive)
  
• R/W optical disk
  
• inch 4.0MB diskette drive (2.88MB formatted)