sudo hdparm -I /dev/sdg
/dev/sdg:
CompactFlash ATA device Model Number: SAMSUNG CF/ATA Serial Number: SS3A0032040515000007 Firmware Revision: Rev 5.0 Standards: Likely used: 4 Configuration: Logical max current cylinders 999 999 heads 16 16 sectors/track 63 63 -- bytes/track: 0 bytes/sector: 512 CHS current addressable sectors: 1006992 LBA user addressable sectors: 1006992 Logical/Physical Sector size: 512 bytes device size with M = 1024*1024: 491 MBytes device size with M = 1000*1000: 515 MBytes cache/buffer size = 1 KBytes (type=DualPort) Capabilities: LBA, IORDY(may be)(cannot be disabled) Buffer size: 1.0kB bytes avail on r/w long: 4 Standby timer values: spec'd by Vendor R/W multiple sector transfer: Max = 1 Current = 0 DMA: not supported PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns