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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/s390/char/tape_class.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-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.h | 61 |
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 0000000..33133ad --- /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__ */ |