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Bluetooth: Expose current Device ID information via debugfs 

For debugging purposes it is good to be able to read the current
configured Device ID details.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-04-01 13:21:37 -07:00 committed by Johan Hedberg
parent db6e3e8d01
commit c3370de64d
1 changed files with 26 additions and 0 deletions
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26
net/bluetooth/hci_debugfs.c
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@ -114,6 +114,30 @@ static const struct file_operations features_fops = {
.release = single_release,
};
static int device_id_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
hci_dev_lock(hdev);
seq_printf(f, "%4.4x:%4.4x:%4.4x:%4.4x\n", hdev->devid_source,
hdev->devid_vendor, hdev->devid_product, hdev->devid_version);
hci_dev_unlock(hdev);
return 0;
}
static int device_id_open(struct inode *inode, struct file *file)
{
return single_open(file, device_id_show, inode->i_private);
}
static const struct file_operations device_id_fops = {
.open = device_id_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int device_list_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
@ -335,6 +359,8 @@ void hci_debugfs_create_common(struct hci_dev *hdev)
debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev);
debugfs_create_u8("hardware_error", 0444, hdev->debugfs,
&hdev->hw_error_code);
debugfs_create_file("device_id", 0444, hdev->debugfs, hdev,
&device_id_fops);
debugfs_create_file("device_list", 0444, hdev->debugfs, hdev,
&device_list_fops);