From a67d71ed90ebcbea5e45d680451554b5267372e0 Mon Sep 17 00:00:00 2001
From: Brendan Le Foll <brendan.le.foll@intel.com>
Date: Wed, 22 Oct 2014 20:52:11 +0100
Subject: [PATCH] spi: fix mraa_spi_bit_per_word call to use correct ioctl

This should fix #14

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
---
 src/spi/spi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/spi/spi.c b/src/spi/spi.c
index 7350261..45a187e 100644
--- a/src/spi/spi.c
+++ b/src/spi/spi.c
@@ -146,6 +146,10 @@ mraa_spi_lsbmode(mraa_spi_context dev, mraa_boolean_t lsb)
 mraa_result_t
 mraa_spi_bit_per_word(mraa_spi_context dev, unsigned int bits)
 {
+    if (ioctl(dev->devfd, SPI_IOC_WR_BITS_PER_WORD, &bits) < 0) {
+        syslog(LOG_ERR, "spi: Failed to set bit per word");
+        return MRAA_ERROR_INVALID_RESOURCE;
+    }
     dev->bpw = bits;
     return MRAA_SUCCESS;
 }