sorry missed &#x27;So, in your opinion the driver issues TRIM, not the OS&#x27; from the previous reply. I never said that and that was not my point<p>my point was that an optional post delete cleanup feature was added to the protocol ready to be used, which is a perfect example on how to evolve long term features. then I said the post cleanup feature for the GPU should sit on the driver, since the GPU driver is the one knowing how to talk to the hardware, as there is not a shared protocol between boards (except vga modes etc but those contexts are memory mapped and os managed) and knows when a clear is performed, since all operations go trough it.