Author: loos
Date: Sat May 31 14:38:05 2014
New Revision: 266923
URL: http://svnweb.freebsd.org/changeset/base/266923
Log:
Ignore IIC_ENOADDR from iicbus_reset() as it only means we have a
master-only controller.
This fixes the iic bus scan with i2c(8) (on supported controllers).
Tested with gpioiic(4).
Modified:
head/sys/dev/iicbus/iic.c
Modified: head/sys/dev/iicbus/iic.c
==============================================================================
--- head/sys/dev/iicbus/iic.c Sat May 31 14:27:50 2014 (r266922)
+++ head/sys/dev/iicbus/iic.c Sat May 31 14:38:05 2014 (r266923)
@@ -322,6 +322,12 @@ iicioctl(struct cdev *dev, u_long cmd, c
case I2CRSTCARD:
error = iicbus_reset(parent, IIC_UNKNOWN, 0, NULL);
+ /*
+ * Ignore IIC_ENOADDR as it only means we have a master-only
+ * controller.
+ */
+ if (error == IIC_ENOADDR)
+ error = 0;
break;
case I2CWRITE:
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