--- zzzz-none-000/linux-4.19.183/drivers/usb/storage/scsiglue.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/drivers/usb/storage/scsiglue.c	2023-06-28 08:54:20.000000000 +0000
@@ -573,8 +573,38 @@
 }
 static DEVICE_ATTR_RW(max_sectors);
 
+#if defined(CONFIG_AVM_USB_SUSPEND)
+/* Output routine for the sysfs max_spinup_ms file */
+static ssize_t
+max_spinup_ms_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct us_data *us = host_to_us(dev_to_shost(dev));
+
+	return sprintf(buf, "%u\n", us->max_spinup_ms);
+}
+
+/* Input routine for the sysfs max_sectors file */
+static ssize_t
+max_spinup_ms_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct us_data *us = host_to_us(dev_to_shost(dev));
+	unsigned int ms;
+
+	if (sscanf(buf, "%u", &ms) > 0) {
+		us->max_spinup_ms = ms;
+		return count;
+	}
+	return -EINVAL;
+}
+
+static DEVICE_ATTR_RW(max_spinup_ms);
+#endif
+
 static struct device_attribute *sysfs_device_attr_list[] = {
 	&dev_attr_max_sectors,
+#if defined(CONFIG_AVM_USB_SUSPEND)
+	&dev_attr_max_spinup_ms,
+#endif
 	NULL,
 };
 
@@ -612,6 +642,10 @@
 	.sg_tablesize =			SG_MAX_SEGMENTS,
 
 
+#if defined(CONFIG_AVM_KERNEL)
+	/* limit the total size of a transfer to 1024 KB */
+	.max_sectors =                  2048,
+#else
 	/*
 	 * Limit the total size of a transfer to 120 KB.
 	 *
@@ -630,6 +664,7 @@
 	 * and 2048 for USB3 devices.
 	 */
 	.max_sectors =                  240,
+#endif
 
 	/*
 	 * merge commands... this seems to help performance, but