On Thu, 2007-05-24 at 14:41 +0100, Alan Cox wrote: > Most people copied the x86 behaviour which makes it easy to transplant. > Some are just smoking something (see ioctls.h for sh-64 and weep), others > have slightly odd behaviour for historical compatibility reasons (Sparc)
Likewise, I assume the lack of IBSHIFT on PowerPC is because of AIX? > > Presumably this is because of the mess in tty_termios_encode_baud_rate > > when we fix its bogus assumptions about IBSHIFT always being defined? > > It's not a bogus assumption. The current code supports > > - The old way > - BOTHER and IBSHIFT > > When PPC wants to do arbitary baud rate it needs to resolve both of the > definitions together. IBSHIFT is simply the shift you apply to the baud > bits to get the input baud bits. Why bother introducing new IBSHIFT stuff when it can be declared obsolete already -- if you want different input and output baud rates, just set BOTHER and have different values c_ispeed and c_ospeed. That's what my patch attempts. It builds but I haven't actually tested it. Why do you say it won't work? -- dwmw2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
