@@ -570,6 +570,9 @@ static void option_instat_callback(struc
/* Interface must have two endpoints */
#define NUMEP2 BIT(16)
+/* Device needs ZLP */
+#define ZLP BIT(17)
+
static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
@@ -1201,6 +1204,8 @@ static const struct usb_device_id option
.driver_info = NCTRL(0) | RSVD(1) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff), /* Telit LN940 (MBIM) */
.driver_info = NCTRL(0) },
+ { USB_DEVICE(TELIT_VENDOR_ID, 0x9010), /* Telit SBL FN980 flashing device */
+ .driver_info = NCTRL(0) | ZLP },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
.driver_info = RSVD(1) },
@@ -2109,6 +2114,9 @@ static int option_attach(struct usb_seri
if (!(device_flags & NCTRL(iface_desc->bInterfaceNumber)))
data->use_send_setup = 1;
+ if (device_flags & ZLP)
+ data->use_zlp = 1;
+
spin_lock_init(&data->susp_lock);
usb_set_serial_data(serial, data);
@@ -36,6 +36,7 @@ struct usb_wwan_intf_private {
spinlock_t susp_lock;
unsigned int suspended:1;
unsigned int use_send_setup:1;
+ unsigned int use_zlp:1;
int in_flight;
unsigned int open_ports;
void *private;
@@ -492,6 +492,7 @@ static struct urb *usb_wwan_setup_urb(st
void (*callback) (struct urb *))
{
struct usb_serial *serial = port->serial;
+ struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
struct urb *urb;
urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
@@ -502,6 +503,9 @@ static struct urb *usb_wwan_setup_urb(st
usb_sndbulkpipe(serial->dev, endpoint) | dir,
buf, len, callback, ctx);
+ if (intfdata->use_zlp && dir == USB_DIR_OUT)
+ urb->transfer_flags |= URB_ZERO_PACKET;
+
return urb;
}