diff options
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
| -rw-r--r-- | drivers/iio/industrialio-buffer.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 209c7ad793c5..0a14bd825fe0 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -604,6 +604,7 @@ static int iio_verify_update(struct iio_dev *indio_dev, const unsigned long *scan_mask; struct iio_buffer *buffer; bool scan_timestamp; + unsigned int modes; memset(config, 0, sizeof(*config)); @@ -615,12 +616,23 @@ static int iio_verify_update(struct iio_dev *indio_dev, list_is_singular(&indio_dev->buffer_list)) return 0; + modes = indio_dev->modes; + + list_for_each_entry(buffer, &indio_dev->buffer_list, buffer_list) { + if (buffer == remove_buffer) + continue; + modes &= buffer->access->modes; + } + + if (insert_buffer) + modes &= insert_buffer->access->modes; + /* Definitely possible for devices to support both of these. */ - if ((indio_dev->modes & INDIO_BUFFER_TRIGGERED) && indio_dev->trig) { + if ((modes & INDIO_BUFFER_TRIGGERED) && indio_dev->trig) { config->mode = INDIO_BUFFER_TRIGGERED; - } else if (indio_dev->modes & INDIO_BUFFER_HARDWARE) { + } else if (modes & INDIO_BUFFER_HARDWARE) { config->mode = INDIO_BUFFER_HARDWARE; - } else if (indio_dev->modes & INDIO_BUFFER_SOFTWARE) { + } else if (modes & INDIO_BUFFER_SOFTWARE) { config->mode = INDIO_BUFFER_SOFTWARE; } else { /* Can only occur on first buffer */ |