[U-Boot] [PATCH v4 2/2] NS16550: buffer reads

[Wolfgang Denk]

Dear Graeme Russ,

In message <CALButCK0oVLTbYxbTF=y-vXL+3+=09VEJpzUnX1+-0SYJQEQJA at mail.gmail.com> you wrote:
>
> > > So how does kermit/ymodem send the XON after the user has entered the
> > > receive command and we have sent the XOFF after the newline?
> >
> > Upon the first getc() that follows?
> 
> And as there will be no corresponding newline, when do we send XOFF?

Never?  Note that kermit / ymodem / S-record download etc. all don't
have any issues with sendign characters back-to-back at line speed.

Problems happen only with multi-line input, so it is perfectly fine
to handle just that - at the root cause, i. e. when input turns into
multi-line input.

Best regards,

Wolfgang Denk

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