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Code Issues Releases Wiki Activity

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

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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: 1e9faef4d2 ("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: Gary van der Merwe <gary.vandermerwe@fnb.co.za>
Link: https://lore.kernel.org/r/20220517161736.13313-1-johan@kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2022-05-17 18:17:36 +02:00
parent 1b30499ace
commit e82e7c6dde
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/serial/pl2303.c
View file

@ -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: