From c0eef162bde6dcf3d81c6eff68e68745f1565df5 Mon Sep 17 00:00:00 2001
From: Olaf Rempel <razzor@kopf-tisch.de>
Date: Sun, 5 Jun 2011 18:23:29 +0200
Subject: [PATCH] read back current and pwm limit

---
 i2c-slave.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/i2c-slave.c b/i2c-slave.c
index b66b4b7..ff71087 100644
--- a/i2c-slave.c
+++ b/i2c-slave.c
@@ -160,7 +160,19 @@ ISR(TWI_vect)
 	case 0xB8:
 		switch (cmd) {
 		case CMD_WAIT:
-			data = 0x00;	/* TODO: transmit Current and MaxPWM */
+			switch (bcnt++) {
+			case 0:
+				data = blmc.current & 0xFF;
+				break;
+
+			case 1:
+				data = 0xFF - blmc.pwm_limit;
+				break;
+
+			default:
+				data = 0xFF;
+				break;
+			}
 			break;
 
 		case CMD_READ_VERSION: