USB: serial: ch341: add support for GW Instek USB2.0-Serial devices
authorStephan Brunner <s.brunner@stephan-brunner.net>
Sat, 8 Jan 2022 12:00:20 +0000 (13:00 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 16 Feb 2022 11:56:36 +0000 (12:56 +0100)
commit fa77ce201f7f2d823b07753575122d1ae5597fbe upstream.

Programmable lab power supplies made by GW Instek, such as the
GPP-2323, have a USB port exposing a serial port to control the device.

Stringing the supplied Windows driver, references to the ch341 chip are
found. Binding the existing ch341 driver to the VID/PID of the GPP-2323
("GW Instek USB2.0-Serial" as per the USB product name) works out of the
box, communication and control is now possible.

This patch should work with any GPP series power supply due to
similarities in the product line.

Signed-off-by: Stephan Brunner <s.brunner@stephan-brunner.net>
Link: https://lore.kernel.org/r/4a47b864-0816-6f6a-efee-aa20e74bcdc6@stephan-brunner.net
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/ch341.c

index 2db917eab79952b3ae8e9d55a7a84c080c2e1881..4b65e690449963038d1d67983ff20886301c238f 100644 (file)
@@ -85,6 +85,7 @@ static const struct usb_device_id id_table[] = {
        { USB_DEVICE(0x1a86, 0x5523) },
        { USB_DEVICE(0x1a86, 0x7522) },
        { USB_DEVICE(0x1a86, 0x7523) },
+       { USB_DEVICE(0x2184, 0x0057) },
        { USB_DEVICE(0x4348, 0x5523) },
        { USB_DEVICE(0x9986, 0x7523) },
        { },