diff options
author | Ivo van Doorn <IvDoorn@gmail.com> | 2007-09-25 20:13:51 +0200 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:53:04 -0700 |
commit | 643b252123fab1a524449be3b79937f17e06a5ac (patch) | |
tree | 21ecae78aa9e3eba28e9490bce858fa93820f3cc /drivers/net/wireless/rt2x00/rt2x00debug.c | |
parent | 066cb637b1b562bebd09d237bfaaca6724f247e5 (diff) |
rt2x00: Add rt2x00dev->flags to debugfs
Loosely based on the patch by Matthijs Kooijman,
this will add the dev_flags entry into debugfs which
will display rt2x00dev->flags.
This will allow easier debugging of flag handling.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00debug.c')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00debug.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c index 4d2aaecd9df..9275d6f9517 100644 --- a/drivers/net/wireless/rt2x00/rt2x00debug.c +++ b/drivers/net/wireless/rt2x00/rt2x00debug.c @@ -57,6 +57,7 @@ struct rt2x00debug_intf { * - driver folder * - driver file * - chipset file + * - device flags file * - register offset/value files * - eeprom offset/value files * - bbp offset/value files @@ -65,6 +66,7 @@ struct rt2x00debug_intf { struct dentry *driver_folder; struct dentry *driver_entry; struct dentry *chipset_entry; + struct dentry *dev_flags; struct dentry *csr_off_entry; struct dentry *csr_val_entry; struct dentry *eeprom_off_entry; @@ -193,6 +195,34 @@ RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16); RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8); RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32); +static ssize_t rt2x00debug_read_dev_flags(struct file *file, + char __user *buf, + size_t length, + loff_t *offset) +{ + struct rt2x00debug_intf *intf = file->private_data; + char line[16]; + size_t size; + + if (*offset) + return 0; + + size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags); + + if (copy_to_user(buf, line, size)) + return -EFAULT; + + *offset += size; + return size; +} + +static const struct file_operations rt2x00debug_fop_dev_flags = { + .owner = THIS_MODULE, + .read = rt2x00debug_read_dev_flags, + .open = rt2x00debug_file_open, + .release = rt2x00debug_file_release, +}; + static struct dentry *rt2x00debug_create_file_driver(const char *name, struct rt2x00debug_intf *intf, @@ -270,6 +300,12 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) if (IS_ERR(intf->chipset_entry)) goto exit; + intf->dev_flags = debugfs_create_file("dev_flags", S_IRUGO, + intf->driver_folder, intf, + &rt2x00debug_fop_dev_flags); + if (IS_ERR(intf->dev_flags)) + goto exit; + #define RT2X00DEBUGFS_CREATE_ENTRY(__intf, __name) \ ({ \ (__intf)->__name##_off_entry = \ @@ -320,6 +356,7 @@ void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) debugfs_remove(intf->eeprom_off_entry); debugfs_remove(intf->csr_val_entry); debugfs_remove(intf->csr_off_entry); + debugfs_remove(intf->dev_flags); debugfs_remove(intf->chipset_entry); debugfs_remove(intf->driver_entry); debugfs_remove(intf->driver_folder); |