Introducing initiatives that encourage competition is bad for business so I empathise with megacorporations for not doing it without regulation. The annoying part is they are also the largest lobby groups, so it's unlikely the US will be the leader of change here.

If I would draft policy that could make it I'd suggest;

- Scoped to companies above a "number of units sold globally" threshold.

- Documentation must be supplied 3, maybe 5 years after hardware release (similar to "generic drugs").

This means small hardware startups are not burdened by the overhead in creating docs, and megacorps retain the ability to extract profit during the period of maximum profitability for the product. The eventual expiry would encourage companies to innovate (I think malicious compliance is unlikely).

With the recent push to decouple dependance on US technology companies, I see this as possible (though still unlikely) in the EU, perhaps Canada.