Do we still need ATA disk CHS addressing?

Alexander Motin mav at
Sat Aug 8 21:39:57 UTC 2009

While preparing wrapping ATA(4) low-level drivers code into CAM SIM, I 
would like to remove CHS addressing support to make code cleaner. CHS 
addressing is officially declared obsoleted and replaced by LBA. Since 
ATA/ATAPI-6 specification (October 2001) it is even no longer documented.

Have anybody seen ATA drive without LBA support in last years?
Any other objections against removing it?

Alexander Motin

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