Sorry about the delay in following up on this one - we're going over the
feedback, and realized we'd missed this comment.
On 08/23/2012 01:55 AM, Linus Walleij wrote:
+/* Create templates for given types */
>+#define simple_show_union_struct_unsigned(regtype, propname)\
>+simple_show_union_struct(regtype, propname, "%u\n")
>+
>+#define simple_show_union_struct_unsigned2(regtype, reg_group, propname)\
>+simple_show_union_struct2(regtype, reg_group, propname, "%u\n")
>+
>+#define show_union_struct_unsigned(regtype, reg_group, propname)\
>+show_union_struct(regtype, reg_group, propname, "%u\n")
>+
>+#define show_store_union_struct_unsigned(regtype, reg_group, propname)\
>+show_store_union_struct(regtype, reg_group, propname, "%u\n")
>+
>+#define show_repeated_union_struct_unsigned(regtype, reg_group, propname)\
>+show_repeated_union_struct(regtype, reg_group, propname, "%u")
>+
>+#define show_store_repeated_union_struct_unsigned(regtype, reg_group, propname)\
>+show_store_repeated_union_struct(regtype, reg_group, propname, "%u")
>+
>+/* Remove access to raw format string versions */
>+/*#undef simple_show_union_struct
>+#undef show_union_struct_unsigned
>+#undef show_store_union_struct
>+#undef show_repeated_union_struct
>+#undef show_store_repeated_union_struct*/
This looks like trying to reimplement ioctl() in sysfs.
If what you want is to send big structs in/out of the kernel,
use either ioctl() on device nodes (should be trivial since input
is using real device nodes) or use configfs.
I'm a little confused. There's repeated emphasis in the kernel doc that
you shouldn't use ioctl() anymore - use sysfs instead. So we've been
using sysfs, though it seems somewhat klutzy. If it's actually OK to
use ioctl(), that could simplify things. On the other hand, using
configfs might be more appropriate.
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