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iio: Allow mraa_iio_trigger_buffer to handle void* args

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Previously, mraa_iio_trigger_buffer took a void* args but did not use
this.  Included implementation to allow user to pass a void* to this
method and have the corresponding pointer returned in the interrupt
handler.

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck
2017-08-30 10:56:09 -07:00
parent 1217c5c034
commit 65e30bf7d3
4 changed files with 13 additions and 12 deletions
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5
src/iio/iio.c
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@@ -332,7 +332,7 @@ mraa_iio_trigger_handler(void* arg)
#endif
// only can process if readsize >= enabled channel's datasize
for (i = 0; i < (read_size / dev->datasize); i++) {
dev->isr((void*)&data);
dev->isr((char*)&data, (void*)dev->isr_args);
}
#ifdef HAVE_PTHREAD_CANCEL
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
@@ -348,7 +348,7 @@ mraa_iio_trigger_handler(void* arg)
}
mraa_result_t
mraa_iio_trigger_buffer(mraa_iio_context dev, void (*fptr)(char* data), void* args)
mraa_iio_trigger_buffer(mraa_iio_context dev, void (*fptr)(char*, void*), void* args)
{
char bu[MAX_SIZE];
if (dev->thread_id != 0) {
@@ -362,6 +362,7 @@ mraa_iio_trigger_buffer(mraa_iio_context dev, void (*fptr)(char* data), void* ar
}
dev->isr = fptr;
dev->isr_args = args;
pthread_create(&dev->thread_id, NULL, mraa_iio_trigger_handler, (void*) dev);
return MRAA_SUCCESS;