[I/J][K/Unstable][OEM-5.14/OEM-5.17][SRU][PATCH 0/1] pl2303: fix type detection for odd device

Po-Hsu Lin po-hsu.lin at canonical.com
Mon Jun 13 06:11:04 UTC 2022

After switching to a more strict chip type detection for the pl2303
USB to serial adaptor driver in commit 8a7bf751 ("USB: serial: pl2303:
amend and tighten type detection")

Device with bcdUSB other than 1.10 and 2.00 will stop working. For
example the Cashino PTP-lil/BT24 Slip printer with bcdUSB 1.01.

* e82e7c6dde ("USB: serial: pl2303: fix type detection for odd device")

This patch can be cherry-picked to all of the affected kernels.

Test kernels can be found here:

F-5.13 has been tested by the bug reporter and the result is good.

[Where problems could occur]
Change limited to this specific driver (and even to this specific type
of devices), if anything goes wrong the adaptor might be not working.

Johan Hovold (1):
  USB: serial: pl2303: fix type detection for odd device

 drivers/usb/serial/pl2303.c | 3 +++
 1 file changed, 3 insertions(+)


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