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path: root/drivers/staging/dgnc/dgnc_utils.c
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Diffstat (limited to 'drivers/staging/dgnc/dgnc_utils.c')
-rw-r--r--drivers/staging/dgnc/dgnc_utils.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c
new file mode 100644
index 000000000..f76de8290
--- /dev/null
+++ b/drivers/staging/dgnc/dgnc_utils.c
@@ -0,0 +1,18 @@
+#include <linux/tty.h>
+#include <linux/sched.h>
+#include "dgnc_utils.h"
+#include "digi.h"
+
+/*
+ * dgnc_ms_sleep()
+ *
+ * Put the driver to sleep for x ms's
+ *
+ * Returns 0 if timed out, !0 (showing signal) if interrupted by a signal.
+ */
+int dgnc_ms_sleep(ulong ms)
+{
+ __set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout((ms * HZ) / 1000);
+ return signal_pending(current);
+}