diff options
Diffstat (limited to 'common/i2c.c')
| -rw-r--r-- | common/i2c.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/common/i2c.c b/common/i2c.c index 2540a325c7..bd2e780466 100644 --- a/common/i2c.c +++ b/common/i2c.c @@ -755,14 +755,25 @@ static void scan_bus(int port, const char *desc) static int command_scan(int argc, char **argv) { - int i; + int port; + char *e; + + if (argc == 1) { + for (port = 0; port < i2c_ports_used; port++) + scan_bus(i2c_ports[port].port, i2c_ports[port].name); + return EC_SUCCESS; + } + + + port = strtoi(argv[1], &e, 0); + if ((*e) || (port >= i2c_ports_used)) + return EC_ERROR_PARAM2; - for (i = 0; i < i2c_ports_used; i++) - scan_bus(i2c_ports[i].port, i2c_ports[i].name); + scan_bus(i2c_ports[port].port, i2c_ports[port].name); return EC_SUCCESS; } DECLARE_CONSOLE_COMMAND(i2cscan, command_scan, - NULL, + "i2cscan [port]", "Scan I2C ports for devices", NULL); #endif |