From 6c7d35c40cb2b498b34befd4dcfc3d6d0bf3208b Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott.shawcroft@gmail.com>
Date: Mon, 16 Oct 2017 14:54:23 -0700
Subject: [PATCH] esp8266: Correct SPI functionality when write_value is
 provided.

It used to introduce extra clocks to the bus rather than changing the
value output.

This fixes SD cards.
---
 esp8266/common-hal/busio/SPI.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/esp8266/common-hal/busio/SPI.c b/esp8266/common-hal/busio/SPI.c
index b372d07643..fc8dd348f1 100644
--- a/esp8266/common-hal/busio/SPI.c
+++ b/esp8266/common-hal/busio/SPI.c
@@ -174,13 +174,13 @@ bool common_hal_busio_spi_read(busio_spi_obj_t *self,
                                 write_value;
     for (size_t j = 0; j < count; ++j) {
         for (size_t k = 0; k < chunk_size; ++k) {
-            data[i] = spi_transaction(HSPI, 0, 0, 0, 0, 0, 0, 8, long_write_value);
+            data[i] = spi_transaction(HSPI, 0, 0, 0, 0, 8, long_write_value, 8, 0);
             ++i;
         }
         ets_loop_iter();
     }
     while (i < len) {
-        data[i] = spi_transaction(HSPI, 0, 0, 0, 0, 0, 0, 8, long_write_value);
+        data[i] = spi_transaction(HSPI, 0, 0, 0, 0, 8, long_write_value, 8, 0);
         ++i;
     }
     return true;