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platforms/common/i2c.cpp: px4_i2c_bus_external check bus validity

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Daniel Agar
2022-10-09 12:30:11 -04:00
parent ce609144b0
commit cd1939a14e
1 changed files with 5 additions and 3 deletions
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platforms/common/i2c.cpp
+5 -3
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@@ -40,9 +40,11 @@
#ifndef BOARD_OVERRIDE_I2C_BUS_EXTERNAL
bool px4_i2c_bus_external(int bus)
{
for (int i = 0; i < I2C_BUS_MAX_BUS_ITEMS; ++i) {
if (px4_i2c_buses[i].bus == bus) {
return px4_i2c_buses[i].is_external;
if (px4_i2c_buses) {
for (int i = 0; i < I2C_BUS_MAX_BUS_ITEMS; ++i) {
if ((px4_i2c_buses[i].bus != -1) && (px4_i2c_buses[i].bus == bus)) {
return px4_i2c_buses[i].is_external;
}
}
}