On Fri, Oct 19, 2012 at 4:24 PM, Peter Maydell <peter.mayd...@linaro.org> wrote: > On 19 October 2012 19:46, Christoffer Dall > <c.d...@virtualopensystems.com> wrote: >> On Wed, Oct 17, 2012 at 4:29 PM, Peter Maydell <peter.mayd...@linaro.org> >> wrote: >>> This doesn't say whether userspace is allowed to make this ioctl >>> multiple times for the same device. This could be any of: >>> * undefined behaviour >>> * second call fails with some errno >>> * second call overrides first one >>> >> >> I added an error condition EEXIST, but since this is trying to not be >> arm-vgic specific this is really up to the individual device - maybe >> we can have some polymorphic device that moves around later. >> >>> It also doesn't say that you're supposed to call this after CREATE >>> and before INIT of the irqchip. (Nor does it say what happens if >>> you call it at some other time.) >>> >> >> same non-device specific argument as above. > > We could have a section in the docs that says "On ARM platforms > there are devices X and Y and they have such-and-such properties > and requirements" [and other devices later can have further docs > as appropriate]. > sure, I can add that.
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