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USB: serial: pl2303: fix type detection for odd device
author
Johan Hovold
<johan@kernel.org>
Tue, 17 May 2022 16:17:36 +0000
(18:17 +0200)
committer
Johan Hovold
<johan@kernel.org>
Wed, 18 May 2022 11:57:00 +0000
(13:57 +0200)
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:
1e9faef4d26d
("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>
drivers/usb/serial/pl2303.c
patch
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blob
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diff --git
a/drivers/usb/serial/pl2303.c
b/drivers/usb/serial/pl2303.c
index
88b284d
..
e0555d3
100644
(file)
--- a/
drivers/usb/serial/pl2303.c
+++ b/
drivers/usb/serial/pl2303.c
@@
-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: