You didn't add the "P80453-B" label in this patch nor in PATCH 5/7…
On Mon, 2024-03-11 at 23:50 -0600, Alex Henrie wrote:
> This device is a gray USB parallel port adapter with "F5U002" imprinted
> on the plastic and a sticker that says both "F5U002" and "P80453-A".
> It's identified in lsusb as "05ab:1001 In-System Design BAYI Printer
> Class Support". It's subtly different from the other gray cable I have
> that has "F5U002 Rev 2" and "P80453-B" on its sticker and device ID
> 050d:0002.
>
> The uss720 driver appears to work flawlessly with this device, although
> the device evidently does not support ECP.
>
> Signed-off-by: Alex Henrie <alexhenrie24@xxxxxxxxx>
> ---
> drivers/usb/misc/uss720.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c
> index 15cafc7dfd22..5803919d7cc4 100644
> --- a/drivers/usb/misc/uss720.c
> +++ b/drivers/usb/misc/uss720.c
> @@ -693,7 +693,7 @@ static int uss720_probe(struct usb_interface *intf,
>
> interface = intf->cur_altsetting;
>
> - if (interface->desc.bNumEndpoints < 3) {
> + if (interface->desc.bNumEndpoints < 2) {
> usb_put_dev(usbdev);
> return -ENODEV;
> }
> @@ -719,7 +719,9 @@ static int uss720_probe(struct usb_interface *intf,
>
> priv->pp = pp;
> pp->private_data = priv;
> - pp->modes = PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP | PARPORT_MODE_ECP | PARPORT_MODE_COMPAT;
> + pp->modes = PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP | PARPORT_MODE_COMPAT;
> + if (interface->desc.bNumEndpoints >= 3)
> + pp->modes |= PARPORT_MODE_ECP;
> pp->dev = &usbdev->dev;
>
> /* set the USS720 control register to manual mode, no ECP compression, enable all ints */
> @@ -774,6 +776,7 @@ static const struct usb_device_id uss720_table[] = {
> { USB_DEVICE(0x050d, 0x1202) }, /* Belkin F5U120-PC */
> { USB_DEVICE(0x0557, 0x2001) },
> { USB_DEVICE(0x05ab, 0x0002) }, /* Belkin F5U002 ISD-101 */
> + { USB_DEVICE(0x05ab, 0x1001) }, /* Belkin F5U002 P80453-A */
> { USB_DEVICE(0x06c6, 0x0100) }, /* Infowave ISD-103 */
> { USB_DEVICE(0x0729, 0x1284) },
> { USB_DEVICE(0x1293, 0x0002) },
