/dev/sda to ata_host

[Com Developer]

Hello List,


Is there any way to reverse map device name  /dev/sda to a the ata_host structure the drive is attached to?

I can go with a misc driver and register ata_host at AHCI  detectation time, but I would like to get ata_host pointer 
anytime I load my module.


Thanks

Cam
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