Commit e82e7c6d authored by Johan Hovold's avatar Johan Hovold
Browse files

USB: serial: pl2303: fix type detection for odd device 

At least one pl2303 device has a bcdUSB of 1.0.1 which most likely was
was intended as 1.1.

Allow bcdDevice 1.0.1 but interpret it as 1.1.

Fixes: 1e9faef4 ("USB: serial: pl2303: fix HX type detection")
Cc: stable@vger.kernel.org      # 5.13
Link: https://lore.kernel.org/linux-usb/CAJixRzqf4a9-ZKZDgWxicc_BpfdZVE9qqGmkiO7xEstOXUbGvQ@mail.gmail.com


Reported-by: default avatarGary van der Merwe <gary.vandermerwe@fnb.co.za>
Link: https://lore.kernel.org/r/20220517161736.13313-1-johan@kernel.org


Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
parent 1b30499a

drivers/usb/serial/pl2303.c

+3 −0
Original line number Diff line number Diff line
@@ -420,6 +420,9 @@ static int pl2303_detect_type(struct usb_serial *serial) 
	bcdUSB = le16_to_cpu(desc->bcdUSB);



	switch (bcdUSB) {

	case 0x101:

		/* USB 1.0.1? Let's assume they meant 1.1... */

		fallthrough;

	case 0x110:

		switch (bcdDevice) {

		case 0x300: