[PATCH] pktcdvd: add sysfs and debugfs interface

Add a sysfs and debugfs interface to the pktcdvd driver.

Look into the Documentation/ABI/testing/* files in the patch for more info.

Signed-off-by: Thomas Maier <balagi@justmail.de>
Signed-off-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 17 insertions, 1 deletions

diff --git a/include/linux/pktcdvd.h b/include/linux/pktcdvd.h
index 9b1a185fb1e5..5ea4f05683f6 100644
--- a/include/linux/pktcdvd.h
+++ b/include/linux/pktcdvd.h
@@ -111,7 +111,8 @@ struct pkt_ctrl_command {
 #include <linux/blkdev.h>
 #include <linux/completion.h>
 #include <linux/cdrom.h>
-
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
 
 /* default bio write queue congestion marks */
 #define PKT_WRITE_CONGESTION_ON    10000
@@ -247,6 +248,14 @@ struct packet_stacked_data
 };
 #define PSD_POOL_SIZE           64
 
+struct pktcdvd_kobj
+{
+        struct kobject          kobj;
+        struct pktcdvd_device   *pd;
+};
+#define to_pktcdvdkobj(_k) \
+  ((struct pktcdvd_kobj*)container_of(_k,struct pktcdvd_kobj,kobj))
+
 struct pktcdvd_device
 {
         struct block_device     *bdev;          /* dev attached */
@@ -280,6 +289,13 @@ struct pktcdvd_device
 
         int                     write_congestion_off;
         int                     write_congestion_on;
+
+        struct class_device     *clsdev;        /* sysfs pktcdvd[0-7] class dev */
+        struct pktcdvd_kobj     *kobj_stat;     /* sysfs pktcdvd[0-7]/stat/     */
+        struct pktcdvd_kobj     *kobj_wqueue;   /* sysfs pktcdvd[0-7]/write_queue/ */
+
+        struct dentry           *dfs_d_root;    /* debugfs: devname directory */
+        struct dentry           *dfs_f_info;    /* debugfs: info file */
 };
 
 #endif /* __KERNEL__ */