diff options
Diffstat (limited to 'commands/i2c.c')
| -rw-r--r-- | commands/i2c.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/commands/i2c.c b/commands/i2c.c index 2f7f820d4d..77d65e3fa3 100644 --- a/commands/i2c.c +++ b/commands/i2c.c @@ -24,19 +24,19 @@ static void i2c_probe_range(struct i2c_adapter *adapter, int startaddr, int stopaddr) { - struct i2c_client client = {}; int addr; - int ret; - u8 reg; - - client.adapter = adapter; printf("probing i2c%d range 0x%02x-0x%02x: ", adapter->nr, startaddr, stopaddr); for (addr = startaddr; addr <= stopaddr && !ctrlc(); addr++) { - client.addr = addr; - ret = i2c_write_reg(&client, 0x00, ®, 0); - if (ret == 0) + struct i2c_msg msg = { + .addr = addr, + .buf = NULL, + .len = 0, + }; + int ret = i2c_transfer(adapter, &msg, 1); + if (ret == 1) printf("0x%02x ", addr); + } printf("\n"); } @@ -44,7 +44,7 @@ static void i2c_probe_range(struct i2c_adapter *adapter, int startaddr, int stop static int do_i2c_probe(int argc, char *argv[]) { struct i2c_adapter *adapter = NULL; - int startaddr = 0, stopaddr = 0x7f; + int startaddr = 4, stopaddr = 0x77; if (argc > 1) { adapter = i2c_get_adapter(simple_strtoul(argv[1], NULL, 0)); @@ -57,13 +57,15 @@ static int do_i2c_probe(int argc, char *argv[]) if (argc > 3) stopaddr = simple_strtol(argv[3], NULL, 0); + if (stopaddr > 0x7f) + stopaddr = 0x7f; + + if (startaddr < 0) + startaddr = 0; if (startaddr > stopaddr) return COMMAND_ERROR_USAGE; - if (stopaddr > 0x7F) - stopaddr = 0x7F; - if (adapter) { i2c_probe_range(adapter, startaddr, stopaddr); } else { |