[PATCH 4/4] dpt_i2o: sysfs code
Create a /sys/class/dpt_i2o directory and populate it with
dptiN directories. Each dptiN directory contains a "dev" file
that makes udev create /dev/dptiN
Signed-off-by: Miquel van Smoorenburg <miquels@xxxxxxxxxx>
diff -ruN linux-2.6.25-03/drivers/scsi/dpt_i2o.c linux-2.6.25-04/drivers/scsi/dpt_i2o.c
--- linux-2.6.25-03/drivers/scsi/dpt_i2o.c 2008-05-02 00:28:55.000000000 +0200
+++ linux-2.6.25-04/drivers/scsi/dpt_i2o.c 2008-05-02 00:27:12.000000000 +0200
@@ -111,6 +111,8 @@
static adpt_hba* hba_chain = NULL;
static int hba_count = 0;
+static struct class *adpt_sysfs_class;
+
#ifdef CONFIG_COMPAT
static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long);
#endif
@@ -254,6 +256,12 @@
adpt_inquiry(pHba);
}
+ adpt_sysfs_class = class_create(THIS_MODULE, "dpt_i2o");
+ if (IS_ERR(adpt_sysfs_class)) {
+ printk(KERN_WARNING"dpti: unable to create dpt_i2o class\n");
+ adpt_sysfs_class = NULL;
+ }
+
for (pHba = hba_chain; pHba; pHba = pHba->next) {
if (adpt_scsi_host_alloc(pHba, sht) < 0){
adpt_i2o_delete_hba(pHba);
@@ -261,6 +269,16 @@
}
pHba->initialized = TRUE;
pHba->state &= ~DPTI_STATE_RESET;
+ if (adpt_sysfs_class) {
+ struct device *dev = device_create(adpt_sysfs_class,
+ NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit),
+ "dpti%d", pHba->unit);
+ if (IS_ERR(dev)) {
+ printk(KERN_WARNING"dpti%d: unable to "
+ "create device in dpt_i2o class\n",
+ pHba->unit);
+ }
+ }
}
// Register our control device node
@@ -1212,8 +1230,16 @@
pci_dev_put(pHba->pDev);
kfree(pHba);
+ if (adpt_sysfs_class)
+ device_destroy(adpt_sysfs_class,
+ MKDEV(DPTI_I2O_MAJOR, pHba->unit));
+
if(hba_count <= 0){
unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);
+ if (adpt_sysfs_class) {
+ class_destroy(adpt_sysfs_class);
+ adpt_sysfs_class = NULL;
+ }
}
}
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