diff options
Diffstat (limited to 'main/i2c.c')
| -rw-r--r-- | main/i2c.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -75,12 +75,12 @@ int write_read_i2c(uint8_t addr, uint8_t *input, size_t input_len, uint8_t *outp uint8_t* scan_bus(uint8_t *array) { int ret; int i = 0; - uint8_t rxdata, handshake_data; + uint8_t* rxdata, handshake_data; init_addr_array(array, MAX_SLAVES); for(int addr = 1; addr < (1<<7); addr++) { // fix handshake - ret = read_i2c(addr, &rxdata, 1); + ret = read_i2c(addr, rxdata, 1); if ( ret <= 0 ) continue; @@ -88,14 +88,14 @@ uint8_t* scan_bus(uint8_t *array) { printf("found possible i2c slave on addr: %d\n", addr); // do handshake - ret = write_read_i2c(addr, (uint8_t*)pb_magic_msg, sizeof(pb_magic_msg), (uint8_t*)handshake_data, sizeof(pb_magic_res)); // fix data + length + everything + ret = write_read_i2c(addr, (uint8_t*)pb_magic_msg, sizeof(pb_magic_msg), &handshake_data, sizeof(pb_magic_res)); // fix data + length + everything if ( ret != sizeof(pb_magic_res)) continue; if ( ret > 0 && (memcmp(handshake_data, pb_magic_res, sizeof(pb_magic_res)) == 0)) { char buf[80]; - size_t s = snprintf(buf, "found i2c puzzle module at address: 0x%02x\n"); + size_t s = snprintf(buf, 80,"found i2c puzzle module at address: 0x%02x\n"); netconn_write(current_connection, buf, s, NETCONN_COPY); array[i] = addr; |