Without this, you get stair-stepping text. :-(
Tim.
*/
Index: linux/drivers/char/lp.c
diff -u linux/drivers/char/lp.c:1.1.1.3 linux/drivers/char/lp.c:1.4
--- linux/drivers/char/lp.c:1.1.1.3 Tue Dec 21 09:34:54 1999
+++ linux/drivers/char/lp.c Wed Dec 22 18:05:17 1999
@@ -662,11 +662,30 @@
parport_negotiate (port, IEEE1284_MODE_COMPAT);
do {
- /* Write the data. */
- written = parport_write (port, s, count);
- if (written > 0) {
- s += written;
- count -= written;
+ /* Write the data, converting LF->CRLF as we go. */
+ ssize_t canwrite = count;
+ char *line = strchr (s, '\n');
+ if (line)
+ canwrite = line - s;
+
+ written = parport_write (port, s, canwrite);
+ if (written <= 0)
+ continue;
+
+ s += written;
+ count -= written;
+ if (line) {
+ const char *crlf = "\r\n";
+ int i = 2;
+
+ /* Dodge the original '\n', and put '\r\n' instead. */
+ s++;
+ count--;
+ while (i) {
+ written = parport_write (port, crlf, i);
+ if (written > 0)
+ i -= written, crlf += written;
+ }
}
} while (count > 0 && (CONSOLE_LP_STRICT || written > 0));
-
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