Kernel build option for (ATA) TRIM support

Hi Community,

since kernel 2.6.33 the ATA TRIM command should be supported but I can't find the involved kernel build option for that feature. I would need this for a footnote in a presentation. Can anyone point me to the right section please?

Thx in advance & Bye Tom

Are you sure it isn't built in by default, not requiring a configuration option?