On October 10, 2018 1:17:17 PM PDT, Alan Cox [off-list ref] wrote:

On Tue, 9 Oct 2018 12:19:04 -0700
"H. Peter Anvin" [off-list ref] wrote:

quoted

[Resending to a wider audience]

In trying to get the termios2 interface actually implemented in

glibc,

quoted

the question came up if we will ever care about baud rates in excess

of

quoted

4 Gbps, even in the relatively remote future.

Even RS485 at 4MBits involves deep magic. I think we are fairly safe.
Not
only that but our entire tty layer isn't capable of sustaining anything
even remotely in that range.

I think its non issue.

Alan

I'm mostly wondering if it is worth future-proofing for new transports. It sounds like we can have a consensus on leaving the upper 4 bits of the speed fields reserved, but leave the details of implementation for the future?
-- 
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