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Implement a simple byte loopback server on I2C for more testing.

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px4dev
2013-01-13 19:05:00 -08:00
parent 2fb820fabd
commit 3cea0959b7
2 changed files with 11 additions and 7 deletions
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apps/systemcmds/i2c/i2c.c
+7 -2
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@@ -84,8 +84,13 @@ int i2c_main(int argc, char *argv[])
int ret = transfer(PX4_I2C_OBDEV_PX4IO, (uint8_t *)&val, sizeof(val), NULL, 0);
if (ret)
errx(1, "transfer failed");
exit(0);
errx(1, "send failed - %d", ret);
ret = transfer(PX4_I2C_OBDEV_PX4IO, NULL, 0, (uint8_t *)&val, sizeof(val));
if (ret)
errx(1, "recive failed - %d", ret);
errx(0, "got 0x%08x", val);
}
static int