USB: serial: simple: add libtransistor console

Add simple driver for libtransistor USB console.
This device is implemented in software:
https://github.com/reswitched/libtransistor/blob/development/lib/usb_serial.c

Signed-off-by: Collin May <collin@collinswebsite.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index a646820f5a78..533f127c30ad 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -62,6 +62,7 @@ config USB_SERIAL_SIMPLE
                 - Fundamental Software dongle.
                 - Google USB serial devices
                 - HP4x calculators
+                - Libtransistor USB console
                 - a number of Motorola phones
                 - Motorola Tetra devices
                 - Novatel Wireless GPS receivers
diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
index 4ef79e29cb26..40864c2bd9dc 100644
--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -63,6 +63,11 @@ DEVICE(flashloader, FLASHLOADER_IDS);
                                         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 */
@@ -110,6 +115,7 @@ static struct usb_serial_driver * const serial_drivers[] = {
         &funsoft_device,
         &flashloader_device,
         &google_device,
+        &libtransistor_device,
         &vivopay_device,
         &moto_modem_device,
         &motorola_tetra_device,
@@ -126,6 +132,7 @@ static const struct usb_device_id id_table[] = {
         FUNSOFT_IDS(),
         FLASHLOADER_IDS(),
         GOOGLE_IDS(),
+        LIBTRANSISTOR_IDS(),
         VIVOPAY_IDS(),
         MOTO_IDS(),
         MOTOROLA_TETRA_IDS(),