From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v4] serial: uartlite: Support for SERIAL_MULTI
Date: Wed, 21 Sep 2011 10:15:14 -0400 [thread overview]
Message-ID: <201109211015.17698.vapier@gentoo.org> (raw)
In-Reply-To: <4E79D6CF.3020804@monstr.eu>
On Wednesday, September 21, 2011 08:21:35 Michal Simek wrote:
> Marek Vasut wrote:
> > On Tuesday, September 20, 2011 09:19:23 AM Michal Simek wrote:
> >> Michal Simek wrote:
> >>> Add support for SERIAL MULTI for uartlite.
> >>
> >> Any comment?
> >
> > Avoid endless loops
>
> No problem to do it for putc but for getc?
> What would you like to return if there is no character available?
getc() is allowed to loop forever. pretty much most drivers also wait forever
with putc(). i dont think serial drivers really matter as if the hardware
breaks, u-boot itself isn't terribly useful anymore. just make sure flow
control doesn't bite you (CTS/RTS).
-mike
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next prev parent reply other threads:[~2011-09-21 14:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-15 13:50 [U-Boot] [PATCH v4] serial: uartlite: Support for SERIAL_MULTI Michal Simek
2011-09-20 7:19 ` Michal Simek
2011-09-20 7:33 ` Marek Vasut
2011-09-21 12:21 ` Michal Simek
2011-09-21 14:15 ` Mike Frysinger [this message]
2011-09-20 17:03 ` Mike Frysinger
2011-09-21 11:31 ` Michal Simek
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