Messages in this thread | | | Date | Sat, 24 Feb 2007 05:34:15 -0500 (EST) | From | "Robert P. J. Day" <> | Subject | why is asm-parisc/ioctl.h subtly different from asm-generic/ioctl.h? |
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just noticed that parisc's ioctl.h file, rather than simply including asm-generic/ioctl.h, has its own copy whose sole (meaningful) difference from the generic one is:
$ diff include/{asm-generic,asm-parisc}/ioctl.h ... 41,42c54,55 < #define _IOC_WRITE 1U < #define _IOC_READ 2U --- > #define _IOC_WRITE 2U > #define _IOC_READ 1U
so parisc is identical except that it switches the meaning of the direction field? is there a reason for this? just curious.
rday
-- ======================================================================== Robert P. J. Day Linux Consulting, Training and Annoying Kernel Pedantry Waterloo, Ontario, CANADA
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