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Date: Thu, 22 Mar 2012 14:28:16 -0700 From: Greg KH <greg@...ah.com> To: Jonathan McCune <jonmccune@....edu> Cc: linux-kernel@...r.kernel.org Subject: Re: sysfs binary attribute API flux On Thu, Mar 22, 2012 at 04:38:46PM -0400, Jonathan McCune wrote: > Greetings, > > I maintain a Linux kernel module for a research project*, where it is > necessary to move some binary data from userspace into the kernel. What exact type of binary data are you talking about here? > I > have been using sysfs's 'struct bin_attribute'. Unfortunately, every > few kernel versions, my code breaks because of a change in the > definition of some elements in this struct. For example, kernel > versions 2.6.20, 2.6.32, and 2.6.38 each define the 'read' and 'write' > function pointers differently. I will spare the inline diff, but they > can each be seen here: Is this a problem? It's only an issue for code that lives outside of the kernel, and there's nothing we can do about that, sorry. > My question: is there some other interface that I should be using? Am > I using sysfs incorrectly? All of the documentation I've been able to > find seems to strongly encourage the use of sysfs. debugfs? What exactly are you using this data for? Who creates it? What does it represent? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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