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-rw-r--r--cpu/ppc4xx/i2c.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/cpu/ppc4xx/i2c.c b/cpu/ppc4xx/i2c.c
index 7d8db9b..4bf0bbd 100644
--- a/cpu/ppc4xx/i2c.c
+++ b/cpu/ppc4xx/i2c.c
@@ -422,4 +422,23 @@ int i2c_write (uchar chip, uint addr, int alen, uchar * buffer, int len)
return (i2c_transfer( 0, chip<<1, &xaddr[4-alen], alen, buffer, len ) != 0);
}
+/*-----------------------------------------------------------------------
+ * Read a register
+ */
+uchar i2c_reg_read(uchar i2c_addr, uchar reg)
+{
+ char buf;
+
+ i2c_read(i2c_addr, reg, 1, &buf, 1);
+
+ return(buf);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a register
+ */
+void i2c_reg_write(uchar i2c_addr, uchar reg, uchar val)
+{
+ i2c_write(i2c_addr, reg, 1, &val, 1);
+}
#endif /* CONFIG_HARD_I2C */