Hi Shashidhar,
On Wed, Jul 18 2012, Shashidhar Hiremath wrote:
> I want to use printascii to debug my serial driver. How do I enable
> it and use the feature.
> Currently I have enabled in menuconfig and done an extern on the
> printascii api, this doesn't seem to work, So any hints for debugging
> serial drivers ?
Sounds like you want this patch, against linux-next:
diff --git a/kernel/printk.c b/kernel/printk.c
index 3991862..36abce8 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -45,6 +45,8 @@
#include <asm/uaccess.h>
+extern void printascii(char *);
+
#define CREATE_TRACE_POINTS
#include <trace/events/printk.h>
@@ -1542,6 +1544,8 @@ asmlinkage int vprintk_emit(int facility, int level,
*/
text_len = vscnprintf(text, sizeof(textbuf), fmt, args);
+ printascii(text);
+
/* mark and strip a trailing newline */
if (text_len && text[text_len-1] == '\n') {
text_len--;
--
Chris Ball <c...@laptop.org> <http://printf.net/>
One Laptop Per Child
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