procedure for creating new ioctl?

[Joseph Cheek]

hi all,

i'd like to create a new ioctl for use in my kernels [actually i already 
have 8-)] but want to make sure that i follow any established procedure 
for creating it before requesting it be included in the kernel. 
 specifically, is there a way to ensure the ioctl number i use isn't in 
use by anyone else?  is there a central registry?

so far i've just picked an arbitrary number:

sanfrancisco:/usr/src/linux-2.4.17/include/linux# diff -Naur kd.h{.orig,}
--- kd.h.orig   Mon Jun 10 11:08:22 2002
+++ kd.h        Thu Jun  6 16:00:33 2002
@@ -177,4 +177,6 @@
    don't reuse for the time being */
 /* note: 0x4B60-0x4B6D, 0x4B70-0x4B72 used above */

+#define KDGETKEYDOWNSTATE      0x4B80  /* read kernel keydown bit */
+
 #endif /* _LINUX_KD_H */

any tips, pointers appreciated.

joe

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Joseph Cheek, CTO and Founder, Lycoris
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