From dae6a0f6636d05bcb28ece1f3630b23ed2d66e18 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Sat, 20 Oct 2007 14:52:38 +0200 Subject: [PATCH] [Bluetooth] Add address and channel attribute to RFCOMM TTY device Export the remote device address and channel of RFCOMM TTY device via sysfs attributes. This allows udev to create better naming rules for configured RFCOMM devices. Signed-off-by: Marcel Holtmann --- net/bluetooth/rfcomm/tty.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 22a832098d44..e447651a2dbe 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -189,6 +189,23 @@ static struct device *rfcomm_get_device(struct rfcomm_dev *dev) return conn ? &conn->dev : NULL; } +static ssize_t show_address(struct device *tty_dev, struct device_attribute *attr, char *buf) +{ + struct rfcomm_dev *dev = dev_get_drvdata(tty_dev); + bdaddr_t bdaddr; + baswap(&bdaddr, &dev->dst); + return sprintf(buf, "%s\n", batostr(&bdaddr)); +} + +static ssize_t show_channel(struct device *tty_dev, struct device_attribute *attr, char *buf) +{ + struct rfcomm_dev *dev = dev_get_drvdata(tty_dev); + return sprintf(buf, "%d\n", dev->channel); +} + +static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); +static DEVICE_ATTR(channel, S_IRUGO, show_channel, NULL); + static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc) { struct rfcomm_dev *dev; @@ -281,6 +298,14 @@ out: return err; } + dev_set_drvdata(dev->tty_dev, dev); + + if (device_create_file(dev->tty_dev, &dev_attr_address) < 0) + BT_ERR("Failed to create address attribute"); + + if (device_create_file(dev->tty_dev, &dev_attr_channel) < 0) + BT_ERR("Failed to create channel attribute"); + return dev->id; } -- 2.20.1