Proc read function and long output

[Danilo Reinhardt <Danilo.Reinhardt@de.bosch.com>]

Hi,

I has the following problem with the proc filesystem/read function.

I know i can only write some amount of data at once to a proc
"listener", but i have to write more data as there is space available. 

The example at bottom is non working, just for demonstration. At the
marked line i check if there is space left and snprintf in it... if not,
i dont write more ;) . But how can i write more data? My text is cut off
somewhere in the middle.... not good :(

This is my code right now:


int proc_read_tis(char *page, char **start,
					off_t off, int count,
					int *eof, void *data) {
	int len;
	char* out = page;
	int idx;
	int tcode;

	out += snprintf(blablabla);

	for (idx=0;idx<MAX_COUNT*2;idx++) {
		out += snprintf(blabla);
		for (tcode=0;tcode<16;tcode++) {
			if (TCODE_NAMES[tcode]!=NULL) {

/******************************* 
-> PROBLEM HERE, no more space available 
********************************/
		if (count - (out-page)>0) {
			out += snprintf(out,count - (out-page),"blablabla....");
					}
				}
			}
		}
	}

	
	len = out - page - off;
	if (len < count) {
		*eof = 1;
		if (len <= 0) 
			return 0;
	} else {
		len = count;
	}
	*start = page + off;
	return len;
}




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