diff options
Diffstat (limited to 'drivers/staging/comedi/comedidev.h')
-rw-r--r-- | drivers/staging/comedi/comedidev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index e243247..70de355 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -22,6 +22,7 @@ #include <linux/dma-mapping.h> #include <linux/mutex.h> #include <linux/spinlock_types.h> +#include <linux/rwsem.h> #include "comedi.h" @@ -184,6 +185,7 @@ struct comedi_device { bool ioenabled:1; spinlock_t spinlock; struct mutex mutex; + struct rw_semaphore attach_lock; int n_subdevices; struct comedi_subdevice *subdevices; |