diff options
| author | Rupesh Gujare <rgujare@ozmodevices.com> | 2012-06-20 13:36:10 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-20 16:05:35 -0700 |
| commit | 6261c1ee6c84290ff89cc2271b9ec634006e53b7 (patch) | |
| tree | c31bfea0d2daba0493ff48f3eafbf19d2770b8ab /drivers | |
| parent | 00ec12b827d2f99202e0c9d804514aef2febf8d6 (diff) | |
staging: ozwpan: udev support
Register ozmo_wpan class with sysfs & support for udev
to create device node.
Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/ozwpan/ozcdev.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index 27325f74ecd..929756abf02 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -330,10 +330,12 @@ const struct file_operations oz_fops = { int oz_cdev_register(void) { int err; + struct class *cl; + struct device *dev; memset(&g_cdev, 0, sizeof(g_cdev)); err = alloc_chrdev_region(&g_cdev.devnum, 0, 1, "ozwpan"); if (err < 0) - return err; + goto out3; oz_trace("Alloc dev number %d:%d\n", MAJOR(g_cdev.devnum), MINOR(g_cdev.devnum)); cdev_init(&g_cdev.cdev, &oz_fops); @@ -342,7 +344,27 @@ int oz_cdev_register(void) spin_lock_init(&g_cdev.lock); init_waitqueue_head(&g_cdev.rdq); err = cdev_add(&g_cdev.cdev, g_cdev.devnum, 1); + if (err < 0) { + oz_trace("Failed to add cdev\n"); + goto out2; + } + cl = class_create(THIS_MODULE, "ozmo_wpan"); + if (IS_ERR(cl)) { + oz_trace("Failed to register ozmo_wpan class\n"); + goto out1; + } + dev = device_create(cl, NULL, g_cdev.devnum, NULL, "ozwpan"); + if (IS_ERR(dev)) { + oz_trace("Failed to create sysfs entry for cdev\n"); + goto out1; + } return 0; +out1: + cdev_del(&g_cdev.cdev); +out2: + unregister_chrdev_region(g_cdev.devnum, 1); +out3: + return err; } /*------------------------------------------------------------------------------ * Context: process |