diff options
Diffstat (limited to 'commandline/i2cget.c')
| -rw-r--r-- | commandline/i2cget.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/commandline/i2cget.c b/commandline/i2cget.c index f2bdb15..95243d4 100644 --- a/commandline/i2cget.c +++ b/commandline/i2cget.c @@ -7,13 +7,14 @@ int main(int argc, char **argv) { int i, address, cmdbuf; + int num_bytes = 1; unsigned int ret; char *conv_err; i2c_getopt(argc, argv); - if (argc < 3) { - fputs("Usage: vusb-i2cget <address> <register ...> ", stderr); + if (argc < 4) { + fputs("Usage: vusb-i2cget <address> <num_bytes> <register ...> ", stderr); return 1; } @@ -24,6 +25,13 @@ int main(int argc, char **argv) return 2; } + num_bytes = strtol(argv[2], &conv_err, 0); + + if (conv_err && *conv_err) { + fprintf(stderr, "num_bytes: Conversion error at '%s'\n", conv_err); + return 2; + } + i2c_init(); i2c_hw_start(); @@ -34,7 +42,7 @@ int main(int argc, char **argv) return 3; } - for (i = 2; i < argc; i++) { + for (i = 3; i < argc; i++) { cmdbuf = strtol(argv[i], &conv_err, 0); if (conv_err && *conv_err) { fprintf(stderr, "read command: Conversion error at '%s'\n", conv_err); @@ -58,12 +66,12 @@ int main(int argc, char **argv) return 3; } - ret = i2c_hw_rx_byte(0); + for (i = 0; i < num_bytes; i++) { + printf("%i\n", i2c_hw_rx_byte(1)); + } i2c_hw_stop(); i2c_deinit(); - printf("%i\n", ret); - return 0; } |