SYCL buffer/USM pointer interoperability

Hello,

Are there any plans for SYCL buffer-USM pointer interoperability? Apologies if this was discussed before, I searched the issues and found this: https://github.com/KhronosGroup/SYCL-Docs/issues/230#issuecomment-1059199180 but I'm not sure if it's the same.

As an example, it looks like OpenSYCL has some implementation for it: https://github.com/OpenSYCL/OpenSYCL/blob/develop/doc/buffer-usm-interop.md

The motivation for this question is: What if there is a SYCL library that was written just with USM API support (i.e. for functions it implements, the library API takes in a queue and USM pointers as arguments), is there a way for a code written with SYCL buffers and accessors to still use the library?

Thank you!

Start by reading the linked SYCL-Docs issue comment and OpenSYCL's buffer-usm-interop.md. The issue names no target files or tests, so first clarify the desired standard behavior for using USM-pointer libraries from buffer/accessor code; completion would require agreed scope and validation criteria.

Written by the indexing model from the issue text.