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Message-ID: <CAEwYmTJzzUi1qfRHYfZg77g1K7myNsAh2oDiY7hWxzRO5hQGHA@mail.gmail.com> Date: Thu, 22 Mar 2012 16:38:46 -0400 From: Jonathan McCune <jonmccune@....edu> To: linux-kernel@...r.kernel.org Cc: "Jonathan M. McCune" <jonmccune@....edu> Subject: sysfs binary attribute API flux 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. 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: http://lxr.linux.no/linux+v2.6.32.59/include/linux/sysfs.h#L65 http://lxr.linux.no/linux+v2.6.38.8/include/linux/sysfs.h#L88 http://lxr.linux.no/linux+v2.6.20.21/include/linux/sysfs.h#L54 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. http://kernel.org/doc/Documentation/filesystems/sysfs.txt cc appreciated in reply. Many thanks, -Jon * http://flickertcb.sourceforge.net/ -- 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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