On 5/31/07, Thomas De Schampheleire <patrickdepinguin@xxxxxxxxx> wrote:
IIRC (didn't look this up recently and it's been a while), the return value should be the number of characters actually written, so the caller (the reader of your proc entry) knows whether an error occurs, or how long the buffer is. In order to write 17, you should use something like int len; int size = 17; len = snprintf(buffer, sizeof(int), "%d", size) return len; I think in order to be correct, you should also handle the offset and start values correctly.
Thanks. I see how that works now. Now I'm having trouble getting a random number. I found get_random_int() in linux/random.h but when I call it I get: WARNING: "get_random_int" [/usr/src/simple/mymodule.ko] undefined! I am including the header like this: #include <linux/random.h> Do I have to do something special because it's in a module? -- Greg Donald http://destiney.com/ -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
