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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/s390/char/tape_class.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/s390/char/tape_class.h')
-rw-r--r--drivers/s390/char/tape_class.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/s390/char/tape_class.h b/drivers/s390/char/tape_class.h
new file mode 100644
index 00000000000..33133ad00ba
--- /dev/null
+++ b/drivers/s390/char/tape_class.h
@@ -0,0 +1,61 @@
+/*
+ * (C) Copyright IBM Corp. 2004 All Rights Reserved.
+ * tape_class.h ($Revision: 1.4 $)
+ *
+ * Tape class device support
+ *
+ * Author: Stefan Bader <shbader@de.ibm.com>
+ * Based on simple class device code by Greg K-H
+ */
+#ifndef __TAPE_CLASS_H__
+#define __TAPE_CLASS_H__
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <linux/kobject.h>
+#include <linux/kobj_map.h>
+#include <linux/cdev.h>
+
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+
+#define TAPECLASS_NAME_LEN 32
+
+struct tape_class_device {
+ struct cdev * char_device;
+ struct class_device * class_device;
+ char device_name[TAPECLASS_NAME_LEN];
+ char mode_name[TAPECLASS_NAME_LEN];
+};
+
+/*
+ * Register a tape device and return a pointer to the tape class device
+ * created by the call.
+ *
+ * device
+ * The pointer to the struct device of the physical (base) device.
+ * dev
+ * The intended major/minor number. The major number may be 0 to
+ * get a dynamic major number.
+ * fops
+ * The pointer to the drivers file operations for the tape device.
+ * device_name
+ * Pointer to the logical device name (will also be used as kobject name
+ * of the cdev). This can also be called the name of the tape class
+ * device.
+ * mode_name
+ * Points to the name of the tape mode. This creates a link with that
+ * name from the physical device to the logical device (class).
+ */
+struct tape_class_device *register_tape_dev(
+ struct device * device,
+ dev_t dev,
+ struct file_operations *fops,
+ char * device_name,
+ char * node_name
+);
+void unregister_tape_dev(struct tape_class_device *tcd);
+
+#endif /* __TAPE_CLASS_H__ */