diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 52f0c96cd98d..014dea1e6d03 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -33,6 +33,7 @@ #define PL2303_QUIRK_UART_STATE_IDX0 BIT(0) +#define PL2303_QUIRK_LEGACY BIT(1) static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, @@ -224,6 +225,8 @@ static int pl2303_startup(struct usb_serial *serial) spriv->type = type; spriv->quirks = (unsigned long)usb_get_serial_data(serial); + if (type == TYPE_01) + spriv->quirks |= PL2303_QUIRK_LEGACY; usb_set_serial_data(serial, spriv); @@ -237,7 +240,7 @@ static int pl2303_startup(struct usb_serial *serial) pl2303_vendor_read(serial, 0x8383, buf); pl2303_vendor_write(serial, 0, 1); pl2303_vendor_write(serial, 1, 0); - if (type == TYPE_01) + if (spriv->quirks & PL2303_QUIRK_LEGACY) pl2303_vendor_write(serial, 2, 0x24); else pl2303_vendor_write(serial, 2, 0x44); @@ -531,7 +534,7 @@ static void pl2303_set_termios(struct tty_struct *tty, } if (C_CRTSCTS(tty)) { - if (spriv->type == TYPE_01) + if (spriv->quirks & PL2303_QUIRK_LEGACY) pl2303_vendor_write(serial, 0x0, 0x41); else pl2303_vendor_write(serial, 0x0, 0x61); @@ -571,7 +574,7 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) struct pl2303_serial_private *spriv = usb_get_serial_data(serial); int result; - if (spriv->type == TYPE_01) { + if (spriv->quirks & PL2303_QUIRK_LEGACY) { usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); } else { |