diff options
| -rw-r--r-- | drivers/bluetooth/btusb.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 20ba8ceff7d1..de0b4d99fcbf 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3647,6 +3647,32 @@ static const struct file_operations force_poll_sync_fops = { .llseek = default_llseek, }; +static ssize_t isoc_alt_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct btusb_data *data = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%d\n", data->isoc_altsetting); +} + +static ssize_t isoc_alt_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct btusb_data *data = dev_get_drvdata(dev); + int alt; + int ret; + + if (kstrtoint(buf, 10, &alt)) + return -EINVAL; + + ret = btusb_switch_alt_setting(data->hdev, alt); + return ret < 0 ? ret : count; +} + +static DEVICE_ATTR_RW(isoc_alt); + static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -4010,6 +4036,10 @@ static int btusb_probe(struct usb_interface *intf, data->isoc, data); if (err < 0) goto out_free_dev; + + err = device_create_file(&intf->dev, &dev_attr_isoc_alt); + if (err) + goto out_free_dev; } if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { @@ -4056,8 +4086,10 @@ static void btusb_disconnect(struct usb_interface *intf) hdev = data->hdev; usb_set_intfdata(data->intf, NULL); - if (data->isoc) + if (data->isoc) { + device_remove_file(&intf->dev, &dev_attr_isoc_alt); usb_set_intfdata(data->isoc, NULL); + } if (data->diag) usb_set_intfdata(data->diag, NULL); |