diff options
Diffstat (limited to 'drivers/usb/serial/pl2303.c')
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index b3d5a35c0d4b..0f872e6b2c87 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -45,6 +45,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, + { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ZTEK) }, { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) }, @@ -161,6 +162,9 @@ static const struct pl2303_type_data pl2303_type_data[TYPE_COUNT] = { .max_baud_rate = 1228800, .quirks = PL2303_QUIRK_LEGACY, }, + [TYPE_HX] = { + .max_baud_rate = 12000000, + }, }; static int pl2303_vendor_read(struct usb_serial *serial, u16 value, @@ -394,16 +398,14 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, if (spriv->type->max_baud_rate) baud = min_t(speed_t, baud, spriv->type->max_baud_rate); /* - * Set baud rate to nearest supported value. - * - * NOTE: Baud rate 500k can only be set using divisors. + * Use direct method for supported baud rates, otherwise use divisors. */ baud_sup = pl2303_get_supported_baud_rate(baud); - if (baud == 500000) - baud = pl2303_encode_baud_rate_divisor(buf, baud); + if (baud == baud_sup) + baud = pl2303_encode_baud_rate_direct(buf, baud); else - baud = pl2303_encode_baud_rate_direct(buf, baud_sup); + baud = pl2303_encode_baud_rate_divisor(buf, baud); /* Save resulting baud rate */ tty_encode_baud_rate(tty, baud, baud); |