lkml.org 
[lkml]   [2006]   [Nov]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [patch/rfc 2.6.19-rc5] arch-neutral GPIO calls
    Hi,

    On 11/23/06, David Brownell <david-b@pacbell.net> wrote:
    > On Tuesday 21 November 2006 7:57 am, Bill Gatliff wrote:
    >
    > > Once you're hiding the GPIO number behind an enumeration, you can create
    > > a bitmap with more information than a single integer. That extra
    > > information could be used--- in my implementations, if any ever come
    > > about--- to store routing information.
    >
    > But none of the existing GPIO users do that. The goal wasn't to define
    > a new notion of GPIO; it was collecting the existing ones under a single
    > arch-neutral umbrella.
    >
    >
    > > >It'd also be a big (and needless) disruption to code that's been working
    > > >fine for several years now ...
    > >
    > > ... all of which is using the current GPIO API, you mean? :)
    >
    > Effectively, yes. I counted quite a few implementations in the current
    > tree which can trivially (#defines) map to that API.

    I tried to do that for pxa, the patch is attached.
    So what is the state of this discussion, now that 2.6.19 is here?

    I just submitted an input driver for GPIO buttons to linux-input that
    we use in the handhelds.org kernel for sa1100, pxa and s3c2410 archs.
    It needs some ugly
    #ifdefs currently, but with common GPIO calls they all could go away.

    regards
    Philipp
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-11-30 08:01    [W:3.929 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site