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| author | Hsin-chen Chuang <chharry@chromium.org> | 2025-01-08 15:24:44 +0300 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2025-01-15 18:37:07 +0300 |
| commit | 0f8a0013741163459fc6cf4610bb9ed2ec25fb94 (patch) | |
| tree | 900cf7f911cf70012841d751566f07df1693d429 | |
| parent | f07d478090b0a03dda46fb45b5c6e089a8408351 (diff) | |
| download | linux-0f8a0013741163459fc6cf4610bb9ed2ec25fb94.tar.xz | |
Bluetooth: Allow reset via sysfs
Allow sysfs to trigger hdev reset. This is required to recover devices
that are not responsive from userspace.
Signed-off-by: Hsin-chen Chuang <chharry@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
| -rw-r--r-- | net/bluetooth/hci_sysfs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c index 4b54dbbf0729..041ce9adc378 100644 --- a/net/bluetooth/hci_sysfs.c +++ b/net/bluetooth/hci_sysfs.c @@ -90,9 +90,28 @@ static void bt_host_release(struct device *dev) module_put(THIS_MODULE); } +static ssize_t reset_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hci_dev *hdev = to_hci_dev(dev); + + if (hdev->reset) + hdev->reset(hdev); + + return count; +} +static DEVICE_ATTR_WO(reset); + +static struct attribute *bt_host_attrs[] = { + &dev_attr_reset.attr, + NULL, +}; +ATTRIBUTE_GROUPS(bt_host); + static const struct device_type bt_host = { .name = "host", .release = bt_host_release, + .groups = bt_host_groups, }; void hci_init_sysfs(struct hci_dev *hdev) |