Messages in this thread | | | Date | Wed, 1 Oct 2014 23:21:46 +0200 | From | Wolfram Sang <> | Subject | Re: Fwd: [Proposal] PM sleep children of inactive I2C bus segments off Masters in multi-master systems |
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On Wed, Oct 01, 2014 at 02:16:57PM -0700, Guenter Roeck wrote: > On Wed, Oct 01, 2014 at 11:10:47PM +0200, Wolfram Sang wrote: > > > > > Maybe you can find an error code which with some level of confidence > > > reflects "lost mastership". Then you can implement whatever makes sense > > > for your use case in your user space application(s). > > > > We have a documented fault code for ArbitrationLost and that is -EAGAIN > > (see Documentation/i2c/fault-codes). If a driver does use something > > else, patches are very welcome. > > > > Other than that, I find this thread very confusing. Of course can > > another master modify the clients, this is what multi-master is all > > about, no? > > > That is the point I was trying to make in one of my earlier replies.
Yes, and I wondered why the thread continued after that, so I thought I'll bring it up again :) No, seriously, I did not understand the reply to that mail of yours, but I'll try again tomorrow after some sleep.
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