Subject: [PATCH] Fix function keys sequence on USB

From: Dinar valeev <[email-masked]>
Date: Fri, 29 May 2015 15:30:01 +0200

From: Dinar Valeev <[email-masked]>

Original issue is home and end keys are not functional in grub2.
Later I've found other inconsistencies in f1-f12 keys.

"Correct sequence" was crabbed by pressing key on cat running in
xterm.

Tested with Home, End, F2, Del and F10 keys in grub2

Signed-off-by: Dinar Valeev <[email-masked]>
---
 lib/libusb/usb-hid.c | 40 +++++++++++++++++-----------------------
 1 file changed, 17 insertions(+), 23 deletions(-)

diff --git a/lib/libusb/usb-hid.c b/lib/libusb/usb-hid.c
index f0cab8a..ccd5ba9 100644
--- a/lib/libusb/usb-hid.c
+++ b/lib/libusb/usb-hid.c
@@ -190,33 +190,29 @@ static void check_key_code(uint8_t *buf)
 				case 0x3a:	                        /* F1 */
 					write_key(0x1b);
 					write_key(0x5b);
-					write_key(0x31);
-					write_key(0x31);
-					write_key(0x7e);
+					write_key(0x4f);
+					write_key(0x50);
 					break;
 
 				case 0x3b:		                /* F2 */
 					write_key(0x1b);
 					write_key(0x5b);
-					write_key(0x31);
-					write_key(0x32);
-					write_key(0x7e);
+					write_key(0x4f);
+					write_key(0x51);
 					break;
 
 				case 0x3c:
 					write_key(0x1b);               /* F3 */
 					write_key(0x5b);
-					write_key(0x31);
-					write_key(0x33);
-					write_key(0x7e);
+					write_key(0x4f);
+					write_key(0x52);
 					break;
 
 				case 0x3d:
 					write_key(0x1b);		/* F4 */
 					write_key(0x5b);
-					write_key(0x31);
-					write_key(0x34);
-					write_key(0x7e);
+					write_key(0x4f);
+					write_key(0x53);
 					break;
 
 				case 0x3e:
@@ -254,7 +250,7 @@ static void check_key_code(uint8_t *buf)
 				case 0x42:
 					write_key(0x1b);		/* F9 */
 					write_key(0x5b);
-					write_key(0x31);
+					write_key(0x32);
 					write_key(0x30);
 					write_key(0x7e);
 					break;
@@ -262,7 +258,7 @@ static void check_key_code(uint8_t *buf)
 				case 0x43:
 					write_key(0x1b);	       /* F10 */
 					write_key(0x5b);
-					write_key(0x31);
+					write_key(0x32);
 					write_key(0x31);
 					write_key(0x7e);
 					break;
@@ -270,7 +266,7 @@ static void check_key_code(uint8_t *buf)
 				case 0x44:
 					write_key(0x1b);	       /* F11 */
 					write_key(0x5b);
-					write_key(0x31);
+					write_key(0x32);
 					write_key(0x33);
 					write_key(0x7e);
 					break;
@@ -278,7 +274,7 @@ static void check_key_code(uint8_t *buf)
 				case 0x45:
 					write_key(0x1b);	       /* F12 */
 					write_key(0x5b);
-					write_key(0x31);
+					write_key(0x32);
 					write_key(0x34);
 					write_key(0x7e);
 					break;
@@ -290,36 +286,34 @@ static void check_key_code(uint8_t *buf)
 				case 0x49:
 					write_key(0x1b);	       /* INS */
 					write_key(0x5b);
-					write_key(0x31);
+					write_key(0x32);
 					write_key(0x7e);
 					break;
 
 				case 0x4a:
 					write_key(0x1b);	      /* HOME */
 					write_key(0x5b);
-					write_key(0x32);
-					write_key(0x7e);
+					write_key(0x48);
 					break;
 
 				case 0x4b:
 					write_key(0x1b);	      /* PgUp */
 					write_key(0x5b);
-					write_key(0x33);
+					write_key(0x35);
 					write_key(0x7e);
 					break;
 
 				case 0x4c:
 					write_key(0x1b);	       /* DEL */
 					write_key(0x5b);
-					write_key(0x34);
+					write_key(0x33);
 					write_key(0x7e);
 					break;
 
 				case 0x4d:
 					write_key(0x1b);	       /* END */
 					write_key(0x5b);
-					write_key(0x35);
-					write_key(0x7e);
+					write_key(0x46);
 					break;
 
 				case 0x4e:
-- 
2.1.4