On Fri, Mar 11, 2022 at 02:55:31PM +0100, Dawid Buchwald wrote:
> This is the issue I have with recently acquired PL2303 adapter:
>
> [ 70.502848] usb 1-2: new full-speed USB device number 5 using xhci_hcd
> [ 70.652523] usb 1-2: New USB device found, idVendor=067b,
> idProduct=23f3, bcdDevice= 6.05
> [ 70.652533] usb 1-2: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [ 70.652538] usb 1-2: Product: USB-Serial Controller
> [ 70.652540] usb 1-2: Manufacturer: Prolific Technology Inc.
> [ 70.652543] usb 1-2: SerialNumber: CJAKj19B616
> [ 70.674558] usbcore: registered new interface driver usbserial_generic
> [ 70.674578] usbserial: USB Serial support registered for generic
> [ 70.677490] usbcore: registered new interface driver pl2303
> [ 70.677498] usbserial: USB Serial support registered for pl2303
> [ 70.677510] pl2303 1-2:1.0: pl2303 converter detected
> [ 70.677513] pl2303 1-2:1.0: unknown device type, please report to
> linux-usb@xxxxxxxxxxxxxxx
> Signed-off-by: Dawid Buchwald <buchwald.dawid@xxxxxxxxx>
>
> ---
> drivers/usb/serial/pl2303.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
> index a70fd86f735c..1072f8eb6ab9 100644
> --- a/drivers/usb/serial/pl2303.c
> +++ b/drivers/usb/serial/pl2303.c
> @@ -435,6 +435,7 @@ static int pl2303_detect_type(struct usb_serial *serial)
> case 0x105:
> case 0x305:
> case 0x405:
> + case 0x605:
> /*
> * Assume it's an HXN-type if the device doesn't
> * support the old read request value.
Thanks for the update. The corrupt whitespace issue appears to be fixed
now.
Someone else reported this on Sunday and I totally forgot that you had
reported the same issue a week earlier and was preparing a v2.
I'm really sorry about that.
This has now been fixed with commit:
5b6ab28d0678 ("USB: serial: pl2303: fix GS type detection")
which will show up in mainline soon and be backported to stable.
Johan
