v4.19.13 snapshot.
diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
new file mode 100644
index 0000000..4d02735
--- /dev/null
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USB Serial "Simple" driver
+ *
+ * Copyright (C) 2001-2006,2008,2013 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2005 Arthur Huillet (ahuillet@users.sf.net)
+ * Copyright (C) 2005 Thomas Hergenhahn <thomas.hergenhahn@suse.de>
+ * Copyright (C) 2009 Outpost Embedded, LLC
+ * Copyright (C) 2010 Zilogic Systems <code@zilogic.com>
+ * Copyright (C) 2013 Wei Shuai <cpuwolf@gmail.com>
+ * Copyright (C) 2013 Linux Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+
+#define DEVICE_N(vendor, IDS, nport) \
+static const struct usb_device_id vendor##_id_table[] = { \
+ IDS(), \
+ { }, \
+}; \
+static struct usb_serial_driver vendor##_device = { \
+ .driver = { \
+ .owner = THIS_MODULE, \
+ .name = #vendor, \
+ }, \
+ .id_table = vendor##_id_table, \
+ .num_ports = nport, \
+};
+
+#define DEVICE(vendor, IDS) DEVICE_N(vendor, IDS, 1)
+
+/* Medtronic CareLink USB driver */
+#define CARELINK_IDS() \
+ { USB_DEVICE(0x0a21, 0x8001) } /* MMT-7305WW */
+DEVICE(carelink, CARELINK_IDS);
+
+/* ZIO Motherboard USB driver */
+#define ZIO_IDS() \
+ { USB_DEVICE(0x1CBE, 0x0103) }
+DEVICE(zio, ZIO_IDS);
+
+/* Funsoft Serial USB driver */
+#define FUNSOFT_IDS() \
+ { USB_DEVICE(0x1404, 0xcddc) }
+DEVICE(funsoft, FUNSOFT_IDS);
+
+/* Infineon Flashloader driver */
+#define FLASHLOADER_IDS() \
+ { USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \
+ { USB_DEVICE(0x8087, 0x0716) }, \
+ { USB_DEVICE(0x8087, 0x0801) }
+DEVICE(flashloader, FLASHLOADER_IDS);
+
+/* Google Serial USB SubClass */
+#define GOOGLE_IDS() \
+ { USB_VENDOR_AND_INTERFACE_INFO(0x18d1, \
+ USB_CLASS_VENDOR_SPEC, \
+ 0x50, \
+ 0x01) }
+DEVICE(google, GOOGLE_IDS);
+
+/* Libtransistor USB console */
+#define LIBTRANSISTOR_IDS() \
+ { USB_DEVICE(0x1209, 0x8b00) }
+DEVICE(libtransistor, LIBTRANSISTOR_IDS);
+
+/* ViVOpay USB Serial Driver */
+#define VIVOPAY_IDS() \
+ { USB_DEVICE(0x1d5f, 0x1004) } /* ViVOpay 8800 */
+DEVICE(vivopay, VIVOPAY_IDS);
+
+/* Motorola USB Phone driver */
+#define MOTO_IDS() \
+ { USB_DEVICE(0x05c6, 0x3197) }, /* unknown Motorola phone */ \
+ { USB_DEVICE(0x0c44, 0x0022) }, /* unknown Motorola phone */ \
+ { USB_DEVICE(0x22b8, 0x2a64) }, /* Motorola KRZR K1m */ \
+ { USB_DEVICE(0x22b8, 0x2c84) }, /* Motorola VE240 phone */ \
+ { USB_DEVICE(0x22b8, 0x2c64) } /* Motorola V950 phone */
+DEVICE(moto_modem, MOTO_IDS);
+
+/* Motorola Tetra driver */
+#define MOTOROLA_TETRA_IDS() \
+ { USB_DEVICE(0x0cad, 0x9011) }, /* Motorola Solutions TETRA PEI */ \
+ { USB_DEVICE(0x0cad, 0x9012) } /* MTP6550 */
+DEVICE(motorola_tetra, MOTOROLA_TETRA_IDS);
+
+/* Novatel Wireless GPS driver */
+#define NOVATEL_IDS() \
+ { USB_DEVICE(0x09d7, 0x0100) } /* NovAtel FlexPack GPS */
+DEVICE_N(novatel_gps, NOVATEL_IDS, 3);
+
+/* HP4x (48/49) Generic Serial driver */
+#define HP4X_IDS() \
+ { USB_DEVICE(0x03f0, 0x0121) }
+DEVICE(hp4x, HP4X_IDS);
+
+/* Suunto ANT+ USB Driver */
+#define SUUNTO_IDS() \
+ { USB_DEVICE(0x0fcf, 0x1008) }, \
+ { USB_DEVICE(0x0fcf, 0x1009) } /* Dynastream ANT USB-m Stick */
+DEVICE(suunto, SUUNTO_IDS);
+
+/* Siemens USB/MPI adapter */
+#define SIEMENS_IDS() \
+ { USB_DEVICE(0x908, 0x0004) }
+DEVICE(siemens_mpi, SIEMENS_IDS);
+
+/* All of the above structures mushed into two lists */
+static struct usb_serial_driver * const serial_drivers[] = {
+ &carelink_device,
+ &zio_device,
+ &funsoft_device,
+ &flashloader_device,
+ &google_device,
+ &libtransistor_device,
+ &vivopay_device,
+ &moto_modem_device,
+ &motorola_tetra_device,
+ &novatel_gps_device,
+ &hp4x_device,
+ &suunto_device,
+ &siemens_mpi_device,
+ NULL
+};
+
+static const struct usb_device_id id_table[] = {
+ CARELINK_IDS(),
+ ZIO_IDS(),
+ FUNSOFT_IDS(),
+ FLASHLOADER_IDS(),
+ GOOGLE_IDS(),
+ LIBTRANSISTOR_IDS(),
+ VIVOPAY_IDS(),
+ MOTO_IDS(),
+ MOTOROLA_TETRA_IDS(),
+ NOVATEL_IDS(),
+ HP4X_IDS(),
+ SUUNTO_IDS(),
+ SIEMENS_IDS(),
+ { },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+module_usb_serial_driver(serial_drivers, id_table);
+MODULE_LICENSE("GPL v2");