USB: serial: cp210x: add new device id [Linux 3.16.72]

This Linux kernel change "USB: serial: cp210x: add new device id" is included in the Linux 3.16.72 release. This change is authored by Greg Kroah-Hartman <gregkh [at]> on Wed Mar 27 10:11:14 2019 +0900. The commit for this change in Linux stable tree is 647f8e5 (patch) which is from upstream commit a595ecd. The same Linux upstream change may have been applied to various maintained Linux releases and you can find all Linux releases containing changes from upstream a595ecd.

USB: serial: cp210x: add new device id

commit a595ecdd5f60b2d93863cebb07eec7f935839b54 upstream.

Lorenz Messtechnik has a device that is controlled by the cp210x driver,
so add the device id to the driver.  The device id was provided by
Silicon-Labs for the devices from this vendor.

Reported-by: Uli <>
Signed-off-by: Greg Kroah-Hartman <>
Signed-off-by: Johan Hovold <>
Signed-off-by: Ben Hutchings <>

There is one line of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.

 drivers/usb/serial/cp210x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index b60dac4..3e22dd2 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -76,6 +76,7 @@ static int cp210x_tiocmset_port(struct usb_serial_port *port,
    { USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */
    { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
    { USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */
+   { USB_DEVICE(0x10C4, 0x8056) }, /* Lorenz Messtechnik devices */
    { USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
    { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */
    { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */

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