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Re: [PATCH 6/7] tty/powerpc: introduce the ePAPR embedded hypervisor byte channel driver

Alan Cox wrote:
>>> > > The kfifo API is probably faster and cleaner. Much of tty still uses
>>> > > CIRC_* because they predate the new APIs.
>> > 
>> > Ok, I'll change it.
> I flag that one up as a general comment - don't feel you need to change
> it if CIRC_* works in your case.

CIRC_* does work for me, so I'll keep it as-is.

>>> > > I guess the only other thing to consider is whether you want to implement
>>> > > a SYSRQ interface on your console ?
>> > 
>> > I don't think byte channels can support SYSRQ, but I'll look into it.

> What some drivers do in this case is nominate some obscure ctrl sequence
> to mean 'sysrq' unless doubled (eg ctrl-^ etc)

Ok, I can do that.

> Depends if the functionality is useful in your environment or not

It is, but I'd like to add it later so that I can make the 2.6.40 window (if it
isn't already too late).

Timur Tabi
Linux kernel developer at Freescale

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