[PW_SID:917446] [v2] Bluetooth: btusb: add sysfs attribute to control USB alt setting

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on: [pull_request]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    name: CI for Pull Request
+    steps:
+    - name: Checkout the source code
+      uses: actions/checkout@v3
+      with:
+        path: src/src
+
+    - name: CI
+      uses: tedd-an/bzcafe@main
+      with:
+        task: ci
+        base_folder: src
+        space: kernel
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        email_token: ${{ secrets.EMAIL_TOKEN }}
+        patchwork_token: ${{ secrets.PATCHWORK_TOKEN }}
+        patchwork_user: ${{ secrets.PATCHWORK_USER }}
+

.github/workflows/sync.yml

@@ -0,0 +1,43 @@
+name: Sync
+
+on:
+  schedule:
+  - cron: "*/30 * * * *"
+
+jobs:
+  sync_repo:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        ref: master
+
+    - name: Sync Repo
+      uses: tedd-an/bzcafe@main
+      with:
+        task: sync
+        upstream_repo: 'https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git'
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Cleanup PR
+      uses: tedd-an/bzcafe@main
+      with:
+        task: cleanup
+        github_token: ${{ secrets.ACTION_TOKEN }}
+
+  sync_patchwork:
+    needs: sync_repo
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Sync Patchwork
+      uses: tedd-an/bzcafe@main
+      with:
+        task: patchwork
+        space: kernel
+        github_token: ${{ secrets.ACTION_TOKEN }}
+        email_token: ${{ secrets.EMAIL_TOKEN }}
+        patchwork_token: ${{ secrets.PATCHWORK_TOKEN }}
+        patchwork_user: ${{ secrets.PATCHWORK_USER }}
+

drivers/bluetooth/btusb.c

@@ -3645,6 +3645,32 @@ 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)
 {
@@ -4008,6 +4034,10 @@ 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) {
@@ -4054,8 +4084,10 @@ 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);