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[SCSI] dpt_i2o: sysfs code

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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@cistron.nl>
Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Miquel van Smoorenburg 2008-05-02 01:08:19 +02:00 committed by James Bottomley
parent 62ac5aedc5
commit 1ed4391095
1 changed files with 26 additions and 0 deletions
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26
drivers/scsi/dpt_i2o.c
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@ -111,6 +111,8 @@ static int sys_tbl_len;
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 @@ static int adpt_detect(struct scsi_host_template* sht)
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 @@ static int adpt_detect(struct scsi_host_template* sht)
}
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 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba)
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;
}
}
}