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openwrt/target/linux/generic-2.6/patches/000-reenable_devfs.patch

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diff -ur linux-2.6.15-rc5/drivers/mtd/mtd_blkdevs.c linux-2.6.15-rc5-openwrt/drivers/mtd/mtd_blkdevs.c
--- linux-2.6.15-rc5/drivers/mtd/mtd_blkdevs.c 2005-12-04 06:10:42.000000000 +0100
+++ linux-2.6.15-rc5-openwrt/drivers/mtd/mtd_blkdevs.c 2005-12-15 07:53:20.000000000 +0100
@@ -21,6 +21,9 @@
#include <linux/init.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
+#ifdef CONFIG_DEVFS_FS
+#include <linux/devfs_fs_kernel.h>
+#endif
static LIST_HEAD(blktrans_majors);
@@ -302,6 +305,11 @@
snprintf(gd->disk_name, sizeof(gd->disk_name),
"%s%d", tr->name, new->devnum);
+#ifdef CONFIG_DEVFS_FS
+ snprintf(gd->devfs_name, sizeof(gd->devfs_name),
+ "%s/%c", tr->name, (tr->part_bits?'a':'0') + new->devnum);
+#endif
+
/* 2.5 has capacity in units of 512 bytes while still
having BLOCK_SIZE_BITS set to 10. Just to keep us amused. */
set_capacity(gd, (new->size * new->blksize) >> 9);
@@ -418,6 +426,10 @@
return ret;
}
+#ifdef CONFIG_DEVFS_FS
+ devfs_mk_dir(tr->name);
+#endif
+
INIT_LIST_HEAD(&tr->devs);
list_add(&tr->list, &blktrans_majors);
@@ -450,6 +462,10 @@
tr->remove_dev(dev);
}
+#ifdef CONFIG_DEVFS_FS
+ devfs_remove(tr->name);
+#endif
+
blk_cleanup_queue(tr->blkcore_priv->rq);
unregister_blkdev(tr->major, tr->name);
diff -ur linux-2.6.15-rc5/drivers/mtd/mtdchar.c linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c
--- linux-2.6.15-rc5/drivers/mtd/mtdchar.c 2005-12-04 06:10:42.000000000 +0100
+++ linux-2.6.15-rc5-openwrt/drivers/mtd/mtdchar.c 2005-12-15 07:49:15.000000000 +0100
@@ -19,19 +18,33 @@
#include <asm/uaccess.h>
+#ifdef CONFIG_DEVFS_FS
+#include <linux/devfs_fs_kernel.h>
+#else
+#include <linux/device.h>
+
static struct class *mtd_class;
+#endif
static void mtd_notify_add(struct mtd_info* mtd)
{
if (!mtd)
return;
+#ifdef CONFIG_DEVFS_FS
+ devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
+ S_IFCHR | S_IRUGO | S_IWUGO, "mtd/%d", mtd->index);
+
+ devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
+ S_IFCHR | S_IRUGO, "mtd/%dro", mtd->index);
+#else
class_device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
NULL, "mtd%d", mtd->index);
class_device_create(mtd_class, NULL,
MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
NULL, "mtd%dro", mtd->index);
+#endif
}
static void mtd_notify_remove(struct mtd_info* mtd)
@@ -39,8 +52,13 @@
if (!mtd)
return;
+#ifdef CONFIG_DEVFS_FS
+ devfs_remove("mtd/%d", mtd->index);
+ devfs_remove("mtd/%dro", mtd->index);
+#else
class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2));
class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1));
+#endif
}
static struct mtd_notifier notifier = {
@@ -48,6 +66,22 @@
.remove = mtd_notify_remove,
};
+#ifdef CONFIG_DEVFS_FS
+ static inline void mtdchar_devfs_init(void)
+ {
+ devfs_mk_dir("mtd");
+ register_mtd_user(&notifier);
+ }
+ static inline void mtdchar_devfs_exit(void)
+ {
+ unregister_mtd_user(&notifier);
+ devfs_remove("mtd");
+ }
+ #else /* !DEVFS */
+ #define mtdchar_devfs_init() do { } while(0)
+ #define mtdchar_devfs_exit() do { } while(0)
+#endif
+
/*
* We use file->private_data to store a pointer to the MTDdevice.
* Since alighment is at least 32 bits, we have 2 bits free for OTP
@@ -643,6 +677,9 @@
return -EAGAIN;
}
+#ifdef CONFIG_DEVFS_FS
+ mtdchar_devfs_init();
+#else
mtd_class = class_create(THIS_MODULE, "mtd");
if (IS_ERR(mtd_class)) {
@@ -652,13 +689,19 @@
}
register_mtd_user(&notifier);
+#endif
return 0;
}
static void __exit cleanup_mtdchar(void)
{
+
+#ifdef CONFIG_DEVFS_FS
+ mtdchar_devfs_exit();
+#else
unregister_mtd_user(&notifier);
class_destroy(mtd_class);
+#endif
unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
}
diff -ur linux-2.6.15-rc5/fs/Kconfig linux-2.6.15-rc5-openwrt/fs/Kconfig
--- linux-2.6.15-rc5/fs/Kconfig 2005-12-04 06:10:42.000000000 +0100
+++ linux-2.6.15-rc5-openwrt/fs/Kconfig 2005-12-15 07:44:01.000000000 +0100
@@ -772,6 +772,56 @@
help
Exports the dump image of crashed kernel in ELF format.
+config DEVFS_FS
+ bool "/dev file system support (OBSOLETE)"
+ depends on EXPERIMENTAL
+ help
+ This is support for devfs, a virtual file system (like /proc) which
+ provides the file system interface to device drivers, normally found
+ in /dev. Devfs does not depend on major and minor number
+ allocations. Device drivers register entries in /dev which then
+ appear automatically, which means that the system administrator does
+ not have to create character and block special device files in the
+ /dev directory using the mknod command (or MAKEDEV script) anymore.
+
+ This is work in progress. If you want to use this, you *must* read
+ the material in <file:Documentation/filesystems/devfs/>, especially
+ the file README there.
+
+ Note that devfs no longer manages /dev/pts! If you are using UNIX98
+ ptys, you will also need to mount the /dev/pts filesystem (devpts).
+
+ Note that devfs has been obsoleted by udev,
+ <http://www.kernel.org/pub/linux/utils/kernel/hotplug/>.
+ It has been stripped down to a bare minimum and is only provided for
+ legacy installations that use its naming scheme which is
+ unfortunately different from the names normal Linux installations
+ use.
+
+ If unsure, say N.
+
+config DEVFS_MOUNT
+ bool "Automatically mount at boot"
+ depends on DEVFS_FS
+ help
+ This option appears if you have CONFIG_DEVFS_FS enabled. Setting
+ this to 'Y' will make the kernel automatically mount devfs onto /dev
+ when the system is booted, before the init thread is started.
+ You can override this with the "devfs=nomount" boot option.
+
+ If unsure, say N.
+
+config DEVFS_DEBUG
+ bool "Debug devfs"
+ depends on DEVFS_FS
+ help
+ If you say Y here, then the /dev file system code will generate
+ debugging messages. See the file
+ <file:Documentation/filesystems/devfs/boot-options> for more
+ details.
+
+ If unsure, say N.
+
config SYSFS
bool "sysfs file system support" if EMBEDDED
default y
diff -ur linux-2.6.17/drivers/ieee1394/dv1394.c linux-2.6.17-devfs/drivers/ieee1394/dv1394.c
--- linux-2.6.17/drivers/ieee1394/dv1394.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/ieee1394/dv1394.c 2006-08-25 11:06:18.000000000 -0700
@@ -73,7 +73,7 @@
- fix all XXX showstoppers
- disable IR/IT DMA interrupts on shutdown
- flush pci writes to the card by issuing a read
- - character device dispatching
+ - devfs and character device dispatching (* needs testing with Linux 2.2.x)
- switch over to the new kernel DMA API (pci_map_*()) (* needs testing on platforms with IOMMU!)
- keep all video_cards in a list (for open() via chardev), set file->private_data = video
- dv1394_poll should indicate POLLIN when receiving buffers are available
@@ -1096,6 +1096,7 @@
init.api_version = DV1394_API_VERSION;
init.n_frames = DV1394_MAX_FRAMES / 4;
+ /* the following are now set via devfs */
init.channel = video->channel;
init.format = video->pal_or_ntsc;
init.cip_n = video->cip_n;
@@ -1790,6 +1791,8 @@
{
struct video_card *video = NULL;
+ /* if the device was opened through devfs, then file->private_data
+ has already been set to video by devfs */
if (file->private_data) {
video = (struct video_card*) file->private_data;
@@ -2208,7 +2211,7 @@
video = kzalloc(sizeof(*video), GFP_KERNEL);
if (!video) {
printk(KERN_ERR "dv1394: cannot allocate video_card\n");
- return -1;
+ goto err;
}
video->ohci = ohci;
@@ -2263,14 +2266,37 @@
list_add_tail(&video->list, &dv1394_cards);
spin_unlock_irqrestore(&dv1394_cards_lock, flags);
+ if (devfs_mk_cdev(MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_DV1394*16 + video->id),
+ S_IFCHR|S_IRUGO|S_IWUGO,
+ "ieee1394/dv/host%d/%s/%s",
+ (video->id>>2),
+ (video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),
+ (video->mode == MODE_RECEIVE ? "in" : "out")) < 0)
+ goto err_free;
+
debug_printk("dv1394: dv1394_init() OK on ID %d\n", video->id);
+
return 0;
+
+ err_free:
+ kfree(video);
+ err:
+ return -1;
}
static void dv1394_un_init(struct video_card *video)
{
+ char buf[32];
+
/* obviously nobody has the driver open at this point */
do_dv1394_shutdown(video, 1);
+ snprintf(buf, sizeof(buf), "dv/host%d/%s/%s", (video->id >> 2),
+ (video->pal_or_ntsc == DV1394_NTSC ? "NTSC" : "PAL"),
+ (video->mode == MODE_RECEIVE ? "in" : "out")
+ );
+
+ devfs_remove("ieee1394/%s", buf);
kfree(video);
}
@@ -2307,6 +2333,9 @@
class_device_destroy(hpsb_protocol_class,
MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)));
+ devfs_remove("ieee1394/dv/host%d/NTSC", id);
+ devfs_remove("ieee1394/dv/host%d/PAL", id);
+ devfs_remove("ieee1394/dv/host%d", id);
}
static void dv1394_add_host (struct hpsb_host *host)
@@ -2323,6 +2352,9 @@
class_device_create(hpsb_protocol_class, NULL, MKDEV(
IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)),
NULL, "dv1394-%d", id);
+ devfs_mk_dir("ieee1394/dv/host%d", id);
+ devfs_mk_dir("ieee1394/dv/host%d/NTSC", id);
+ devfs_mk_dir("ieee1394/dv/host%d/PAL", id);
dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE);
dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT);
@@ -2579,8 +2611,10 @@
static void __exit dv1394_exit_module(void)
{
hpsb_unregister_protocol(&dv1394_driver);
+
hpsb_unregister_highlevel(&dv1394_highlevel);
cdev_del(&dv1394_cdev);
+ devfs_remove("ieee1394/dv");
}
static int __init dv1394_init_module(void)
@@ -2596,12 +2630,15 @@
return ret;
}
+ devfs_mk_dir("ieee1394/dv");
+
hpsb_register_highlevel(&dv1394_highlevel);
ret = hpsb_register_protocol(&dv1394_driver);
if (ret) {
printk(KERN_ERR "dv1394: failed to register protocol\n");
hpsb_unregister_highlevel(&dv1394_highlevel);
+ devfs_remove("ieee1394/dv");
cdev_del(&dv1394_cdev);
return ret;
}
diff -ur linux-2.6.17/drivers/ieee1394/ieee1394_core.c linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.c
--- linux-2.6.17/drivers/ieee1394/ieee1394_core.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.c 2006-08-25 11:06:18.000000000 -0700
@@ -1078,10 +1078,17 @@
goto exit_release_kernel_thread;
}
+ /* actually this is a non-fatal error */
+ ret = devfs_mk_dir("ieee1394");
+ if (ret < 0) {
+ HPSB_ERR("unable to make devfs dir for device major %d!\n", IEEE1394_MAJOR);
+ goto release_chrdev;
+ }
+
ret = bus_register(&ieee1394_bus_type);
if (ret < 0) {
HPSB_INFO("bus register failed");
- goto release_chrdev;
+ goto release_devfs;
}
for (i = 0; fw_bus_attrs[i]; i++) {
@@ -1092,7 +1099,7 @@
fw_bus_attrs[i--]);
}
bus_unregister(&ieee1394_bus_type);
- goto release_chrdev;
+ goto release_devfs;
}
}
@@ -1145,6 +1152,8 @@
for (i = 0; fw_bus_attrs[i]; i++)
bus_remove_file(&ieee1394_bus_type, fw_bus_attrs[i]);
bus_unregister(&ieee1394_bus_type);
+release_devfs:
+ devfs_remove("ieee1394");
release_chrdev:
unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
exit_release_kernel_thread:
@@ -1182,6 +1191,7 @@
hpsb_cleanup_config_roms();
unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
+ devfs_remove("ieee1394");
}
module_init(ieee1394_init);
diff -ur linux-2.6.17/drivers/ieee1394/ieee1394_core.h linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.h
--- linux-2.6.17/drivers/ieee1394/ieee1394_core.h 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/ieee1394/ieee1394_core.h 2006-08-25 11:06:18.000000000 -0700
@@ -3,6 +3,7 @@
#define _IEEE1394_CORE_H
#include <linux/slab.h>
+#include <linux/devfs_fs_kernel.h>
#include <asm/atomic.h>
#include <asm/semaphore.h>
#include "hosts.h"
diff -ur linux-2.6.17/drivers/ieee1394/raw1394.c linux-2.6.17-devfs/drivers/ieee1394/raw1394.c
--- linux-2.6.17/drivers/ieee1394/raw1394.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/ieee1394/raw1394.c 2006-08-25 11:06:18.000000000 -0700
@@ -41,6 +41,7 @@
#include <linux/cdev.h>
#include <asm/uaccess.h>
#include <asm/atomic.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/compat.h>
#include "csr1212.h"
@@ -2998,6 +2999,9 @@
goto out_unreg;
}
+ devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
+ S_IFCHR | S_IRUSR | S_IWUSR, RAW1394_DEVICE_NAME);
+
cdev_init(&raw1394_cdev, &raw1394_fops);
raw1394_cdev.owner = THIS_MODULE;
kobject_set_name(&raw1394_cdev.kobj, RAW1394_DEVICE_NAME);
@@ -3019,6 +3023,7 @@
goto out;
out_dev:
+ devfs_remove(RAW1394_DEVICE_NAME);
class_device_destroy(hpsb_protocol_class,
MKDEV(IEEE1394_MAJOR,
IEEE1394_MINOR_BLOCK_RAW1394 * 16));
@@ -3034,6 +3039,7 @@
MKDEV(IEEE1394_MAJOR,
IEEE1394_MINOR_BLOCK_RAW1394 * 16));
cdev_del(&raw1394_cdev);
+ devfs_remove(RAW1394_DEVICE_NAME);
hpsb_unregister_highlevel(&raw1394_highlevel);
hpsb_unregister_protocol(&raw1394_driver);
}
diff -ur linux-2.6.17/drivers/ieee1394/video1394.c linux-2.6.17-devfs/drivers/ieee1394/video1394.c
--- linux-2.6.17/drivers/ieee1394/video1394.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/ieee1394/video1394.c 2006-08-25 11:06:18.000000000 -0700
@@ -42,6 +42,7 @@
#include <linux/poll.h>
#include <linux/smp_lock.h>
#include <linux/delay.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/vmalloc.h>
@@ -1321,6 +1322,9 @@
class_device_create(hpsb_protocol_class, NULL, MKDEV(
IEEE1394_MAJOR, minor),
NULL, "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
+ devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, minor),
+ S_IFCHR | S_IRUSR | S_IWUSR,
+ "%s/%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
}
@@ -1328,9 +1332,12 @@
{
struct ti_ohci *ohci = hpsb_get_hostinfo(&video1394_highlevel, host);
- if (ohci)
+ if (ohci) {
class_device_destroy(hpsb_protocol_class, MKDEV(IEEE1394_MAJOR,
IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id));
+ devfs_remove("%s/%d", VIDEO1394_DRIVER_NAME, ohci->host->id);
+ }
+
return;
}
@@ -1471,8 +1478,12 @@
static void __exit video1394_exit_module (void)
{
hpsb_unregister_protocol(&video1394_driver);
+
hpsb_unregister_highlevel(&video1394_highlevel);
+
+ devfs_remove(VIDEO1394_DRIVER_NAME);
cdev_del(&video1394_cdev);
+
PRINT_G(KERN_INFO, "Removed " VIDEO1394_DRIVER_NAME " module");
}
@@ -1489,12 +1500,15 @@
return ret;
}
+ devfs_mk_dir(VIDEO1394_DRIVER_NAME);
+
hpsb_register_highlevel(&video1394_highlevel);
ret = hpsb_register_protocol(&video1394_driver);
if (ret) {
PRINT_G(KERN_ERR, "video1394: failed to register protocol");
hpsb_unregister_highlevel(&video1394_highlevel);
+ devfs_remove(VIDEO1394_DRIVER_NAME);
cdev_del(&video1394_cdev);
return ret;
}
diff -ur linux-2.6.17/drivers/scsi/osst.c linux-2.6.17-devfs/drivers/scsi/osst.c
--- linux-2.6.17/drivers/scsi/osst.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/scsi/osst.c 2006-08-25 11:06:18.000000000 -0700
@@ -48,6 +48,7 @@
#include <linux/vmalloc.h>
#include <linux/blkdev.h>
#include <linux/moduleparam.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/delay.h>
#include <linux/jiffies.h>
#include <asm/uaccess.h>
@@ -5721,7 +5722,7 @@
struct st_partstat * STps;
struct osst_buffer * buffer;
struct gendisk * drive;
- int i, dev_num;
+ int i, mode, dev_num;
if (SDp->type != TYPE_TAPE || !osst_supports(SDp))
return -ENODEV;
@@ -5857,6 +5858,18 @@
snprintf(name, 8, "%s%s", "n", tape_name(tpnt));
osst_sysfs_add(MKDEV(OSST_MAJOR, dev_num + 128), dev, tpnt, name);
}
+ for (mode = 0; mode < ST_NBR_MODES; ++mode) {
+ /* Rewind entry */
+ devfs_mk_cdev(MKDEV(OSST_MAJOR, dev_num + (mode << 5)),
+ S_IFCHR | S_IRUGO | S_IWUGO,
+ "%s/ot%s", SDp->devfs_name, osst_formats[mode]);
+
+ /* No-rewind entry */
+ devfs_mk_cdev(MKDEV(OSST_MAJOR, dev_num + (mode << 5) + 128),
+ S_IFCHR | S_IRUGO | S_IWUGO,
+ "%s/ot%sn", SDp->devfs_name, osst_formats[mode]);
+ }
+ drive->number = devfs_register_tape(SDp->devfs_name);
sdev_printk(KERN_INFO, SDp,
"osst :I: Attached OnStream %.5s tape as %s\n",
@@ -5873,7 +5886,7 @@
{
struct scsi_device * SDp = to_scsi_device(dev);
struct osst_tape * tpnt;
- int i;
+ int i, mode;
if ((SDp->type != TYPE_TAPE) || (osst_nr_dev <= 0))
return 0;
@@ -5884,6 +5897,11 @@
osst_sysfs_destroy(MKDEV(OSST_MAJOR, i));
osst_sysfs_destroy(MKDEV(OSST_MAJOR, i+128));
tpnt->device = NULL;
+ for (mode = 0; mode < ST_NBR_MODES; ++mode) {
+ devfs_remove("%s/ot%s", SDp->devfs_name, osst_formats[mode]);
+ devfs_remove("%s/ot%sn", SDp->devfs_name, osst_formats[mode]);
+ }
+ devfs_unregister_tape(tpnt->drive->number);
put_disk(tpnt->drive);
os_scsi_tapes[i] = NULL;
osst_nr_dev--;
diff -ur linux-2.6.17/drivers/scsi/scsi.c linux-2.6.17-devfs/drivers/scsi/scsi.c
--- linux-2.6.17/drivers/scsi/scsi.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/scsi/scsi.c 2006-08-25 11:07:42.000000000 -0700
@@ -48,6 +48,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/completion.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/unistd.h>
#include <linux/spinlock.h>
#include <linux/kmod.h>
@@ -1247,6 +1248,7 @@
for_each_possible_cpu(i)
INIT_LIST_HEAD(&per_cpu(scsi_done_q, i));
+ devfs_mk_dir("scsi");
printk(KERN_NOTICE "SCSI subsystem initialized\n");
return 0;
@@ -1271,6 +1273,7 @@
scsi_exit_sysctl();
scsi_exit_hosts();
scsi_exit_devinfo();
+ devfs_remove("scsi");
scsi_exit_procfs();
scsi_exit_queue();
}
diff -ur linux-2.6.17/drivers/scsi/scsi_scan.c linux-2.6.17-devfs/drivers/scsi/scsi_scan.c
--- linux-2.6.17/drivers/scsi/scsi_scan.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/scsi/scsi_scan.c 2006-08-25 11:06:18.000000000 -0700
@@ -716,8 +716,12 @@
if (inq_result[7] & 0x10)
sdev->sdtr = 1;
+ sprintf(sdev->devfs_name, "scsi/host%d/bus%d/target%d/lun%d",
+ sdev->host->host_no, sdev->channel,
+ sdev->id, sdev->lun);
+
/*
- * End sysfs code.
+ * End driverfs/devfs code.
*/
if ((sdev->scsi_level >= SCSI_2) && (inq_result[7] & 2) &&
diff -ur linux-2.6.17/drivers/scsi/sd.c linux-2.6.17-devfs/drivers/scsi/sd.c
--- linux-2.6.17/drivers/scsi/sd.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/scsi/sd.c 2006-08-25 11:06:18.000000000 -0700
@@ -1683,6 +1683,8 @@
'a' + m1, 'a' + m2, 'a' + m3);
}
+ strcpy(gd->devfs_name, sdp->devfs_name);
+
gd->private_data = &sdkp->driver;
gd->queue = sdkp->device->request_queue;
diff -ur linux-2.6.17/drivers/scsi/sg.c linux-2.6.17-devfs/drivers/scsi/sg.c
--- linux-2.6.17/drivers/scsi/sg.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/scsi/sg.c 2006-08-25 11:06:18.000000000 -0700
@@ -44,6 +44,7 @@
#include <linux/poll.h>
#include <linux/smp_lock.h>
#include <linux/moduleparam.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/cdev.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>
@@ -1427,10 +1428,14 @@
k = error;
sdp = sg_dev_arr[k];
+ devfs_mk_cdev(MKDEV(SCSI_GENERIC_MAJOR, k),
+ S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP,
+ "%s/generic", scsidp->devfs_name);
error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, k), 1);
- if (error)
+ if (error) {
+ devfs_remove("%s/generic", scsidp->devfs_name);
goto out;
-
+ }
sdp->cdev = cdev;
if (sg_sysfs_valid) {
struct class_device * sg_class_member;
@@ -1520,6 +1525,7 @@
class_device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, k));
cdev_del(sdp->cdev);
sdp->cdev = NULL;
+ devfs_remove("%s/generic", scsidp->devfs_name);
put_disk(sdp->disk);
sdp->disk = NULL;
if (NULL == sdp->headfp)
diff -ur linux-2.6.17/drivers/scsi/sr.c linux-2.6.17-devfs/drivers/scsi/sr.c
--- linux-2.6.17/drivers/scsi/sr.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/scsi/sr.c 2006-08-25 11:06:18.000000000 -0700
@@ -592,6 +592,8 @@
get_capabilities(cd);
sr_vendor_init(cd);
+ snprintf(disk->devfs_name, sizeof(disk->devfs_name),
+ "%s/cd", sdev->devfs_name);
disk->driverfs_dev = &sdev->sdev_gendev;
set_capacity(disk, cd->capacity);
disk->private_data = &cd->driver;
diff -ur linux-2.6.17/drivers/scsi/st.c linux-2.6.17-devfs/drivers/scsi/st.c
--- linux-2.6.17/drivers/scsi/st.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/drivers/scsi/st.c 2006-08-25 11:06:18.000000000 -0700
@@ -35,6 +35,7 @@
#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/moduleparam.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/cdev.h>
#include <linux/delay.h>
#include <linux/mutex.h>
@@ -4053,8 +4054,23 @@
do_create_class_files(tpnt, dev_num, mode);
}
+ for (mode = 0; mode < ST_NBR_MODES; ++mode) {
+ /* Make sure that the minor numbers corresponding to the four
+ first modes always get the same names */
+ i = mode << (4 - ST_NBR_MODE_BITS);
+ /* Rewind entry */
+ devfs_mk_cdev(MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, 0)),
+ S_IFCHR | S_IRUGO | S_IWUGO,
+ "%s/mt%s", SDp->devfs_name, st_formats[i]);
+ /* No-rewind entry */
+ devfs_mk_cdev(MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, 1)),
+ S_IFCHR | S_IRUGO | S_IWUGO,
+ "%s/mt%sn", SDp->devfs_name, st_formats[i]);
+ }
+ disk->number = devfs_register_tape(SDp->devfs_name);
+
sdev_printk(KERN_WARNING, SDp,
"Attached scsi tape %s\n", tape_name(tpnt));
printk(KERN_WARNING "%s: try direct i/o: %s (alignment %d B)\n",
tape_name(tpnt), tpnt->try_dio ? "yes" : "no",
queue_dma_alignment(SDp->request_queue) + 1);
@@ -4106,9 +4122,13 @@
scsi_tapes[i] = NULL;
st_nr_dev--;
write_unlock(&st_dev_arr_lock);
+ devfs_unregister_tape(tpnt->disk->number);
sysfs_remove_link(&tpnt->device->sdev_gendev.kobj,
"tape");
for (mode = 0; mode < ST_NBR_MODES; ++mode) {
+ j = mode << (4 - ST_NBR_MODE_BITS);
+ devfs_remove("%s/mt%s", SDp->devfs_name, st_formats[j]);
+ devfs_remove("%s/mt%sn", SDp->devfs_name, st_formats[j]);
for (j=0; j < 2; j++) {
class_device_destroy(st_sysfs_class,
MKDEV(SCSI_TAPE_MAJOR,
diff -ur linux-2.6.17/include/scsi/scsi_device.h linux-2.6.17-devfs/include/scsi/scsi_device.h
--- linux-2.6.17/include/scsi/scsi_device.h 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-devfs/include/scsi/scsi_device.h 2006-08-25 11:06:18.000000000 -0700
@@ -74,6 +74,7 @@
unsigned sector_size; /* size in bytes */
void *hostdata; /* available to low-level driver */
+ char devfs_name[256]; /* devfs junk */
char type;
char scsi_level;
char inq_periph_qual; /* PQ from INQUIRY data */
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