> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > On Behalf Of David Gibson > Sent: Thursday, August 07, 2008 1:13 AM > To: Tabi Timur > Cc: linuxppc-dev@ozlabs.org; [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: Re: [RFC/PATCH 2/3] of: add of_lookup_stdout() > utility function > > On Wed, Aug 06, 2008 at 11:46:47AM -0500, Timur Tabi wrote: > > On Wed, Aug 6, 2008 at 1:02 AM, Grant Likely > <[EMAIL PROTECTED]> wrote: > > > From: Grant Likely <[EMAIL PROTECTED]> > > > > > > of_lookup_stdout() is useful for figuring out what device > to use as output > > > for early boot progress messages. It returns the node > pointed to by the > > > linux,stdout-path property in the chosen node. > > > > I thought linux,stdout-path is deprecated are we're supposed to be > > using the aliases node instead? > > During the ePAPR process this idea came up - standardising a 'stdout' > alias that would replace linux,stdout-path in chosen. However that > was done in ignorance of the history of the linux,stdout-path property > and its connection to the stdout ihandle in chosen. In any case, the > proposed 'stdout' alias didn't make the final cut for ePAPR, so how to > address this for flat-tree systems is still an open question.
In the ePAPR discussion I think we generally agreed that an alias was better than a property under /chosen. There were 2 things that caused us to delete the /aliases/stdout. One was discussions around whether we needed to support multiple consoles somehow. The second was the idea that we may need a /aliases/stdin as well. You could conceptually have stdout be a monitor and a stdin be a keyboard. Stuart _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
