1 files changed, 158 insertions, 48 deletions

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 5ed183477aaf..d560c0b54e6e 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -62,6 +62,8 @@ static int  option_tiocmget(struct tty_struct *tty, struct file *file);
 static int  option_tiocmset(struct tty_struct *tty, struct file *file,
                                 unsigned int set, unsigned int clear);
 static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *port);
+static int  option_suspend(struct usb_serial *serial, pm_message_t message);
+static int  option_resume(struct usb_serial *serial);
 
 /* Vendor and product IDs */
 #define OPTION_VENDOR_ID                        0x0AF0
@@ -89,6 +91,7 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 #define OPTION_PRODUCT_ETNA_MODEM_GT            0x7041
 #define OPTION_PRODUCT_ETNA_MODEM_EX            0x7061
 #define OPTION_PRODUCT_ETNA_KOI_MODEM           0x7100
+#define OPTION_PRODUCT_GTM380_MODEM             0x7201
 
 #define HUAWEI_VENDOR_ID                        0x12D1
 #define HUAWEI_PRODUCT_E600                     0x1001
@@ -158,6 +161,13 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 #define HUAWEI_PRODUCT_E143E                    0x143E
 #define HUAWEI_PRODUCT_E143F                    0x143F
 
+#define QUANTA_VENDOR_ID                        0x0408
+#define QUANTA_PRODUCT_Q101                     0xEA02
+#define QUANTA_PRODUCT_Q111                     0xEA03
+#define QUANTA_PRODUCT_GLX                      0xEA04
+#define QUANTA_PRODUCT_GKE                      0xEA05
+#define QUANTA_PRODUCT_GLE                      0xEA06
+
 #define NOVATELWIRELESS_VENDOR_ID               0x1410
 
 /* YISO PRODUCTS */
@@ -190,16 +200,18 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 /* OVATION PRODUCTS */
 #define NOVATELWIRELESS_PRODUCT_MC727           0x4100
 #define NOVATELWIRELESS_PRODUCT_MC950D          0x4400
+#define NOVATELWIRELESS_PRODUCT_U727            0x5010
 
 /* FUTURE NOVATEL PRODUCTS */
-#define NOVATELWIRELESS_PRODUCT_EVDO_1          0x6000
-#define NOVATELWIRELESS_PRODUCT_HSPA_1          0x7000
-#define NOVATELWIRELESS_PRODUCT_EMBEDDED_1      0x8000
-#define NOVATELWIRELESS_PRODUCT_GLOBAL_1        0x9000
-#define NOVATELWIRELESS_PRODUCT_EVDO_2          0x6001
-#define NOVATELWIRELESS_PRODUCT_HSPA_2          0x7001
-#define NOVATELWIRELESS_PRODUCT_EMBEDDED_2      0x8001
-#define NOVATELWIRELESS_PRODUCT_GLOBAL_2        0x9001
+#define NOVATELWIRELESS_PRODUCT_EVDO_FULLSPEED  0X6000
+#define NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED  0X6001
+#define NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED  0X7000
+#define NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED  0X7001
+#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED 0X8000
+#define NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED 0X8001
+#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED 0X9000
+#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED 0X9001
+#define NOVATELWIRELESS_PRODUCT_GLOBAL          0XA001
 
 /* AMOI PRODUCTS */
 #define AMOI_VENDOR_ID                          0x1614
@@ -209,6 +221,27 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 
 #define DELL_VENDOR_ID                          0x413C
 
+/* Dell modems */
+#define DELL_PRODUCT_5700_MINICARD              0x8114
+#define DELL_PRODUCT_5500_MINICARD              0x8115
+#define DELL_PRODUCT_5505_MINICARD              0x8116
+#define DELL_PRODUCT_5700_EXPRESSCARD           0x8117
+#define DELL_PRODUCT_5510_EXPRESSCARD           0x8118
+
+#define DELL_PRODUCT_5700_MINICARD_SPRINT       0x8128
+#define DELL_PRODUCT_5700_MINICARD_TELUS        0x8129
+
+#define DELL_PRODUCT_5720_MINICARD_VZW          0x8133
+#define DELL_PRODUCT_5720_MINICARD_SPRINT       0x8134
+#define DELL_PRODUCT_5720_MINICARD_TELUS        0x8135
+#define DELL_PRODUCT_5520_MINICARD_CINGULAR     0x8136
+#define DELL_PRODUCT_5520_MINICARD_GENERIC_L    0x8137
+#define DELL_PRODUCT_5520_MINICARD_GENERIC_I    0x8138
+
+#define DELL_PRODUCT_5730_MINICARD_SPRINT       0x8180
+#define DELL_PRODUCT_5730_MINICARD_TELUS        0x8181
+#define DELL_PRODUCT_5730_MINICARD_VZW          0x8182
+
 #define KYOCERA_VENDOR_ID                       0x0c88
 #define KYOCERA_PRODUCT_KPC650                  0x17da
 #define KYOCERA_PRODUCT_KPC680                  0x180a
@@ -224,7 +257,7 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 #define ONDA_VENDOR_ID                          0x19d2
 #define ONDA_PRODUCT_MSA501HS                   0x0001
 #define ONDA_PRODUCT_ET502HS                    0x0002
-#define ONDA_PRODUCT_MT503HS                    0x0200
+#define ONDA_PRODUCT_MT503HS                    0x2000
 
 #define BANDRICH_VENDOR_ID                      0x1A8D
 #define BANDRICH_PRODUCT_C100_1                 0x1002
@@ -259,19 +292,13 @@ static int  option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
 
 /* ZTE PRODUCTS */
 #define ZTE_VENDOR_ID                           0x19d2
+#define ZTE_PRODUCT_MF622                       0x0001
 #define ZTE_PRODUCT_MF628                       0x0015
 #define ZTE_PRODUCT_MF626                       0x0031
 #define ZTE_PRODUCT_CDMA_TECH                   0xfffe
 
-/* Ericsson products */
-#define ERICSSON_VENDOR_ID                      0x0bdb
-#define ERICSSON_PRODUCT_F3507G                 0x1900
-
-/* Pantech products */
-#define PANTECH_VENDOR_ID                       0x106c
-#define PANTECH_PRODUCT_PC5740                  0x3701
-#define PANTECH_PRODUCT_PC5750                  0x3702  /* PX-500 */
-#define PANTECH_PRODUCT_UM150                   0x3711
+#define BENQ_VENDOR_ID                          0x04a5
+#define BENQ_PRODUCT_H10                        0x4068
 
 static struct usb_device_id option_ids[] = {
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
@@ -298,6 +325,12 @@ static struct usb_device_id option_ids[] = {
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
+        { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GTM380_MODEM) },
+        { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q101) },
+        { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q111) },
+        { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLX) },
+        { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GKE) },
+        { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLE) },
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
         { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
@@ -383,31 +416,37 @@ static struct usb_device_id option_ids[] = {
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */
         { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_1) }, /* Novatel EVDO product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_1) }, /* Novatel HSPA product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_1) }, /* Novatel Embedded product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_1) }, /* Novatel Global product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_2) }, /* Novatel EVDO product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_2) }, /* Novatel HSPA product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EMBEDDED_2) }, /* Novatel Embedded product */
-        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL_2) }, /* Novatel Global product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U727) }, /* Novatel MC727/U727/USB727 */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_FULLSPEED) }, /* Novatel EVDO product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED) }, /* Novatel HSPA product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) }, /* Novatel EVDO Embedded product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED) }, /* Novatel HSPA Embedded product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED) }, /* Novatel EVDO product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED) }, /* Novatel HSPA product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_HIGHSPEED) }, /* Novatel EVDO Embedded product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED) }, /* Novatel HSPA Embedded product */
+        { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_GLOBAL) }, /* Novatel Global product */
 
         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
         { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H02) },
 
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8133) }, /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8138) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
-        { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_MINICARD) },             /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5500_MINICARD) },             /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5505_MINICARD) },             /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_EXPRESSCARD) },          /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5510_EXPRESSCARD) },          /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_MINICARD_SPRINT) },      /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5700_MINICARD_TELUS) },       /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5720_MINICARD_VZW) },         /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5720_MINICARD_SPRINT) },      /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5720_MINICARD_TELUS) },       /* Dell Wireless 5720 == Novatel EV620 CDMA/EV-DO */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_CINGULAR) },    /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_GENERIC_L) },   /* Dell Wireless HSDPA 5520 */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_GENERIC_I) },   /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_SPRINT) },      /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_TELUS) },       /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
+        { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) },         /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },   /* ADU-E100, ADU-310 */
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -472,13 +511,12 @@ static struct usb_device_id option_ids[] = {
         { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
         { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */
         { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) },
+        { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622) },
         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) },
         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
         { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
-        { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
-        { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5740) },
-        { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_PC5750) },
-        { USB_DEVICE(PANTECH_VENDOR_ID, PANTECH_PRODUCT_UM150) },
+        { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
+        { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */
         { } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
@@ -487,6 +525,8 @@ static struct usb_driver option_driver = {
         .name       = "option",
         .probe      = usb_serial_probe,
         .disconnect = usb_serial_disconnect,
+        .suspend    = usb_serial_suspend,
+        .resume     = usb_serial_resume,
         .id_table   = option_ids,
         .no_dynamic_id =        1,
 };
@@ -515,6 +555,8 @@ static struct usb_serial_driver option_1port_device = {
         .attach            = option_startup,
         .shutdown          = option_shutdown,
         .read_int_callback = option_instat_callback,
+        .suspend           = option_suspend,
+        .resume            = option_resume,
 };
 
 static int debug;
@@ -785,10 +827,10 @@ static void option_instat_callback(struct urb *urb)
                                 req_pkt->bRequestType, req_pkt->bRequest);
                 }
         } else
-                dbg("%s: error %d", __func__, status);
+                err("%s: error %d", __func__, status);
 
         /* Resubmit urb so we continue receiving IRQ data */
-        if (status != -ESHUTDOWN) {
+        if (status != -ESHUTDOWN && status != -ENOENT) {
                 urb->dev = serial->dev;
                 err = usb_submit_urb(urb, GFP_ATOMIC);
                 if (err)
@@ -807,7 +849,6 @@ static int option_write_room(struct tty_struct *tty)
 
         portdata = usb_get_serial_port_data(port);
 
-
         for (i = 0; i < N_OUT_URB; i++) {
                 this_urb = portdata->out_urbs[i];
                 if (this_urb && !test_bit(i, &portdata->out_busy))
@@ -1069,14 +1110,12 @@ bail_out_error:
         return 1;
 }
 
-static void option_shutdown(struct usb_serial *serial)
+static void stop_read_write_urbs(struct usb_serial *serial)
 {
         int i, j;
         struct usb_serial_port *port;
         struct option_port_private *portdata;
 
-        dbg("%s", __func__);
-
         /* Stop reading/writing urbs */
         for (i = 0; i < serial->num_ports; ++i) {
                 port = serial->port[i];
@@ -1086,6 +1125,17 @@ static void option_shutdown(struct usb_serial *serial)
                 for (j = 0; j < N_OUT_URB; j++)
                         usb_kill_urb(portdata->out_urbs[j]);
         }
+}
+
+static void option_shutdown(struct usb_serial *serial)
+{
+        int i, j;
+        struct usb_serial_port *port;
+        struct option_port_private *portdata;
+
+        dbg("%s", __func__);
+
+        stop_read_write_urbs(serial);
 
         /* Now free them */
         for (i = 0; i < serial->num_ports; ++i) {
@@ -1116,6 +1166,66 @@ static void option_shutdown(struct usb_serial *serial)
         }
 }
 
+static int option_suspend(struct usb_serial *serial, pm_message_t message)
+{
+        dbg("%s entered", __func__);
+        stop_read_write_urbs(serial);
+
+        return 0;
+}
+
+static int option_resume(struct usb_serial *serial)
+{
+        int err, i, j;
+        struct usb_serial_port *port;
+        struct urb *urb;
+        struct option_port_private *portdata;
+
+        dbg("%s entered", __func__);
+        /* get the interrupt URBs resubmitted unconditionally */
+        for (i = 0; i < serial->num_ports; i++) {
+                port = serial->port[i];
+                if (!port->interrupt_in_urb) {
+                        dbg("%s: No interrupt URB for port %d\n", __func__, i);
+                        continue;
+                }
+                port->interrupt_in_urb->dev = serial->dev;
+                err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
+                dbg("Submitted interrupt URB for port %d (result %d)", i, err);
+                if (err < 0) {
+                        err("%s: Error %d for interrupt URB of port%d",
+                                 __func__, err, i);
+                        return err;
+                }
+        }
+
+        for (i = 0; i < serial->num_ports; i++) {
+                /* walk all ports */
+                port = serial->port[i];
+                portdata = usb_get_serial_port_data(port);
+                mutex_lock(&port->mutex);
+
+                /* skip closed ports */
+                if (!port->port.count) {
+                        mutex_unlock(&port->mutex);
+                        continue;
+                }
+
+                for (j = 0; j < N_IN_URB; j++) {
+                        urb = portdata->in_urbs[j];
+                        err = usb_submit_urb(urb, GFP_NOIO);
+                        if (err < 0) {
+                                mutex_unlock(&port->mutex);
+                                err("%s: Error %d for bulk URB %d",
+                                         __func__, err, i);
+                                return err;
+                        }
+                }
+                mutex_unlock(&port->mutex);
+        }
+        return 0;
+}
+
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);