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tools: iio: generic_buffer: Fix generic scale extraction 

When using generic_buffer to read data, the scale is not properly
detected for scale shared by type. This is caused by a problem
with the generation of generic name out of the full name.
E.g.: for current->name in_accel_z, the extracted generic name
is "in" (when it should be "in_accel"). This is used in generic_buffer
to generate scale and offset paths (in_accel_scale).

Consider the in_ or out_ prefix when extracting the generic name
from the full name.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Irina Tirdea 2015-03-27 13:53:00 +02:00 committed by Jonathan Cameron
parent 8ea06893e6
commit d9d7b99047
1 changed files with 17 additions and 3 deletions
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20
tools/iio/iio_utils.c
View File

@ -20,6 +20,11 @@
const char *iio_dir = "/sys/bus/iio/devices/";
static char * const iio_direction[] = {
"in",
"out",
};
/**
* iioutils_break_up_name() - extract generic name from full channel name
* @full_name: the full channel name
@ -30,10 +35,19 @@ int iioutils_break_up_name(const char *full_name,
{
char *current;
char *w, *r;
char *working;
char *working, *prefix = "";
int i;
current = strdup(full_name);
for (i = 0; i < sizeof(iio_direction) / sizeof(iio_direction[0]); i++)
if (!strncmp(full_name, iio_direction[i],
strlen(iio_direction[i]))) {
prefix = iio_direction[i];
break;
}
current = strdup(full_name + strlen(prefix) + 1);
working = strtok(current, "_\0");
w = working;
r = working;
@ -45,7 +59,7 @@ int iioutils_break_up_name(const char *full_name,
r++;
}
*w = '\0';
*generic_name = strdup(working);
asprintf(generic_name, "%s_%s", prefix, working);
free(current);
return 0;