On Aug 15, 2007, at 4:30 PM, Timur Tabi wrote: > This patch adds the setmaskedbits_xxx() macros, which are used to > set a > multiple-bit bit pattern in a register. The macros include a mask, > which > zeros the respective bits before applying the value via a bitwise-OR. > There are big-endian and little-endian versions for 8, 16, 32, and > 64 bits. > > These new macros are useful because the setbits macros can only be > used > to set single-bit fields. For example, if you have a 32-bit register > where bits 17-20 need to be set to 0100, you would do > setmaskedbits_be32(p, 4 << 11, 0xF << 11). > > Signed-off-by: Timur Tabi <[EMAIL PROTECTED]> > --- > > Updated the changelog to include a reason why you'd want these macros. > I have a number of new SOC device drivers coming up that will use > these > macros, if this patch is accepted.
Can you post a driver that uses this. I'm interested in seeing what the readability is really like using these macros. - k _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
