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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
| commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
| tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /tools/iio/generic_buffer.c | |
| parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) | |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'tools/iio/generic_buffer.c')
| -rw-r--r-- | tools/iio/generic_buffer.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c index 9f7b85bf6..01c4f6780 100644 --- a/tools/iio/generic_buffer.c +++ b/tools/iio/generic_buffer.c @@ -328,6 +328,15 @@ int main(int argc, char **argv) "diag %s\n", dev_dir_name); goto error_free_triggername; } + if (!num_channels) { + fprintf(stderr, + "No channels are enabled, we have nothing to scan.\n"); + fprintf(stderr, "Enable channels manually in " + FORMAT_SCAN_ELEMENTS_DIR + "/*_en and try again.\n", dev_dir_name); + ret = -ENOENT; + goto error_free_triggername; + } /* * Construct the directory name for the associated buffer. |