Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 014/667] USB: serial: pl2303: fix type detection for odd device | Date | Tue, 7 Jun 2022 18:54:39 +0200 |
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From: Johan Hovold <johan@kernel.org>
commit e82e7c6dde91acd6748d672a44dc1980ce239f86 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/usb/serial/pl2303.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -421,6 +421,9 @@ static int pl2303_detect_type(struct usb 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:
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