USB: Option: Add support for a variant of DLink DWM 652 U5

[profile/ivi/kernel-x86-ivi.git] / drivers / usb / serial / option.c

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index f6646b3..3ab1a04 100644 (file)
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -309,6 +309,7 @@ static int  option_resume(struct usb_serial *serial);
 #define DLINK_VENDOR_ID                                0x1186
 #define DLINK_PRODUCT_DWM_652                  0x3e04
 #define DLINK_PRODUCT_DWM_652_U5               0xce16
+#define DLINK_PRODUCT_DWM_652_U5A              0xce1e
 
 #define QISDA_VENDOR_ID                                0x1da5
 #define QISDA_PRODUCT_H21_4512                 0x4512
@@ -336,8 +337,13 @@ static int  option_resume(struct usb_serial *serial);
 #define AIRPLUS_VENDOR_ID                      0x1011
 #define AIRPLUS_PRODUCT_MCD650                 0x3198
 
+/* Longcheer/Longsung vendor ID; makes whitelabel devices that
+ * many other vendors like 4G Systems, Alcatel, ChinaBird,
+ * Mobidata, etc sell under their own brand names.
+ */
+#define LONGCHEER_VENDOR_ID                    0x1c9e
+
 /* 4G Systems products */
-#define FOUR_G_SYSTEMS_VENDOR_ID               0x1c9e
 /* This is the 4G XS Stick W14 a.k.a. Mobilcom Debitel Surf-Stick *
  * It seems to contain a Qualcomm QSC6240/6290 chipset            */
 #define FOUR_G_SYSTEMS_PRODUCT_W14             0x9603
@@ -654,6 +660,7 @@ static const struct usb_device_id option_ids[] = {
        { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
        { USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },
        { USB_DEVICE(ALINK_VENDOR_ID, DLINK_PRODUCT_DWM_652_U5) }, /* Yes, ALINK_VENDOR_ID */
+       { USB_DEVICE(ALINK_VENDOR_ID, DLINK_PRODUCT_DWM_652_U5A) },
        { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4512) },
        { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4523) },
        { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4515) },
@@ -661,12 +668,11 @@ static const struct usb_device_id option_ids[] = {
        { USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_G450) },
        { USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_HSDPA_MINICARD ) }, /* Toshiba 3G HSDPA == Novatel Expedite EU870D MiniCard */
        { USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
-       { USB_DEVICE(ALINK_VENDOR_ID, 0xce16) },
        { USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
        { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) },
        { USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },
        { USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },
-       { USB_DEVICE(FOUR_G_SYSTEMS_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
+       { USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
          .driver_info = (kernel_ulong_t)&four_g_w14_blacklist
        },
        { USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) },
@@ -964,7 +970,6 @@ static void option_indat_callback(struct urb *urb)
        } else {
                tty = tty_port_tty_get(&port->port);
                if (urb->actual_length) {
-                       tty_buffer_request_room(tty, urb->actual_length);
                        tty_insert_flip_string(tty, data, urb->actual_length);
                        tty_flip_buffer_push(tty);
                } else 
@@ -972,9 +977,9 @@ static void option_indat_callback(struct urb *urb)
                tty_kref_put(tty);
 
                /* Resubmit urb so we continue receiving */
-               if (port->port.count && status != -ESHUTDOWN) {
+               if (status != -ESHUTDOWN) {
                        err = usb_submit_urb(urb, GFP_ATOMIC);
-                       if (err)
+                       if (err && err != -EPERM)
                                printk(KERN_ERR "%s: resubmit read urb failed. "
                                        "(%d)", __func__, err);
                        else