From 594ee6d249f726a0f3335533b911a401d4eb028d Mon Sep 17 00:00:00 2001
From: Verkehrsrot <cyberman@obh.snafu.de>
Date: Fri, 22 May 2020 10:07:40 +0200
Subject: [PATCH] Update SD_MMC.cpp (#4020)

According to ESP-IDF API
https://github.com/espressif/esp-idf/blob/dc14d027cec49260b78efb1c3724b1710f2f3ec0/docs/en/api-reference/peripherals/sdmmc_host.rst :

"To configure the bus width, set the width field of :cpp:class:`sdmmc_slot_config_t`. For example, to set 1-line mode:

sdmmc_slot_config_t slot = SDMMC_SLOT_CONFIG_DEFAULT();
slot.width = 1;
"
---
 libraries/SD_MMC/src/SD_MMC.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/SD_MMC/src/SD_MMC.cpp b/libraries/SD_MMC/src/SD_MMC.cpp
index 4de46730..5db7d1a0 100644
--- a/libraries/SD_MMC/src/SD_MMC.cpp
+++ b/libraries/SD_MMC/src/SD_MMC.cpp
@@ -64,6 +64,7 @@ bool SDMMCFS::begin(const char * mountpoint, bool mode1bit)
 #endif
     if(mode1bit) {
         host.flags = SDMMC_HOST_FLAG_1BIT; //use 1-line SD mode
+	slot_config.width = 1;
     }
 
     esp_vfs_fat_sdmmc_mount_config_t mount_config = {