Bug report: pl2303 unknown device type -

Bug report: pl2303 unknown device type -

[Gary van der Merwe]

Hi

We have a Cashino PTP-lil/BT24 Slip printer[1]. When configured in
serial mode, it uses a pl2303 chip.  This has not detected by the
kernel since 5.13.  The bcdUSB is 1.01, and the driver was changed to
only allow 1.10 and 2.00 [2]  Please consider adding 1.01 as an
allowed pl2303 bcdUSB.

Thanks, Gary

# uname -a
Linux GAU233333LD12 5.17.6-051706-generic #202205090841 SMP PREEMPT
Mon May 9 08:51:54 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

# journalctl -b -k -g pl2303 -o cat
usbcore: registered new interface driver pl2303
usbserial: USB Serial support registered for pl2303
pl2303 3-3:1.0: pl2303 converter detected
pl2303 3-3:1.0: unknown device type, please report to linux-usb@vger.kernel.org

Full output of lsusb -v: https://launchpadlibrarian.net/599900231/lsusb-v

[1] https://www.cashinotech.com/ptp-iii-80mm-portable-mobile-thermal-printer_p23.html
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/usb/serial/pl2303.c#n421

Re: Bug report: pl2303 unknown device type -

[Johan Hovold]

On Mon, May 16, 2022 at 07:48:51PM +0200, Gary van der Merwe wrote:

> We have a Cashino PTP-lil/BT24 Slip printer[1]. When configured in
> serial mode, it uses a pl2303 chip.  This has not detected by the
> kernel since 5.13.  The bcdUSB is 1.01, and the driver was changed to
> only allow 1.10 and 2.00 [2]  Please consider adding 1.01 as an
> allowed pl2303 bcdUSB.

Heh. USB 1.01? I'll add a workaround to continue treating this as 1.10
(and an HX device).

Can I credit you using name and email in the commit message for
reporting this?

Johan

Re: Bug report: pl2303 unknown device type -

[Gary van der Merwe]

On Tue, May 17, 2022 at 5:59 PM Johan Hovold <johan@kernel.org> wrote:
> Heh. USB 1.01? I'll add a workaround to continue treating this as 1.10
> (and an HX device).

Thanks!

> Can I credit you using name and email in the commit message for
> reporting this?

Sure. In hindsight, please use my work email, as it was done for work,
and during work time: gary.vandermerwe@fnb.co.za

Re: Bug report: pl2303 unknown device type -

[Johan Hovold]

On Tue, May 17, 2022 at 06:26:56PM +0200, Gary van der Merwe wrote:
> On Tue, May 17, 2022 at 5:59 PM Johan Hovold <johan@kernel.org> wrote:

> > Can I credit you using name and email in the commit message for
> > reporting this?
> 
> Sure. In hindsight, please use my work email, as it was done for work,
> and during work time: gary.vandermerwe@fnb.co.za

I've applied the fix with a 

	Reported-by: Gary van der Merwe <gary.vandermerwe@fnb.co.za>

tag now.

Thanks!

Johan