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authorMarcel Holtmann <marcel@holtmann.org>2015-04-01 13:21:37 -0700
committerJohan Hedberg <johan.hedberg@intel.com>2015-04-02 08:40:35 +0300
commitc3370de64d563fa0db5e773b97b77ea7a961d131 (patch)
tree483df9b43e7663f4f40578a409f93b034b84a7bc /net/bluetooth
parentdb6e3e8d016823c6b0f773c70a69ce65807d8a44 (diff)
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>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_debugfs.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index e6255833a258..7db4220941cc 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -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);