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x86: edison: add check in init_pre uart hook

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If none 0 index passed, will log error.
Related to #152

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
This commit is contained in:
Thomas Ingleby
2015-06-29 19:45:16 +01:00
parent 22ace9c642
commit 79d1acd17f
1 changed files with 4 additions and 0 deletions
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4
src/x86/intel_edison_fab_c.c
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@@ -559,6 +559,10 @@ mraa_intel_edsion_mb_gpio_mode(mraa_gpio_context dev, gpio_mode_t mode)
mraa_result_t mraa_result_t
mraa_intel_edison_uart_init_pre(int index) mraa_intel_edison_uart_init_pre(int index)
{ {
if (index != 0) {
syslog(LOG_ERR, "edison: Failed to write to drive mode");
return MRAA_ERROR_INVALID_RESOURCE;
}
if (miniboard == 0) { if (miniboard == 0) {
mraa_gpio_write(tristate, 0); mraa_gpio_write(tristate, 0);
mraa_gpio_context io0_output = mraa_gpio_init_raw(248); mraa_gpio_context io0_output = mraa_gpio_init_raw(248);