Hi
After upgrading the Linux kernel from 5.11.0-27 to 5.13.0-37 a device that uses a pl2303 usb serial chip no longer works.
This seems very similar to bug 1959110, and according to that it should be fixed, but somehow it's not.
# uname -a Linux GAU233333LD04 5.13.0-37-generic #42~20.04.1-Ubuntu SMP Tue Mar 15 15:44:28 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
# journalctl -b -k -g pl2303 -o cat usbcore: registered new interface driver pl2303 usbserial: USB Serial support registered for pl2303 pl2303 1-12:1.0: pl2303 converter detected pl2303 1-12:1.0: unknown device type, please report to <email address hidden>
# udevadm info /sys/devices/pci0000:00/0000:00:14.0/usb1/1-12/1-12:1.0 P: /devices/pci0000:00/0000:00:14.0/usb1/1-12/1-12:1.0 L: 0 E: DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-12/1-12:1.0 E: DEVTYPE=usb_interface E: PRODUCT=67b/2303/300 E: TYPE=0/0/0 E: INTERFACE=255/0/0 E: MODALIAS=usb:v067Bp2303d0300dc00dsc00dp00icFFisc00ip00in00 E: SUBSYSTEM=usb E: USEC_INITIALIZED=56177916 E: ID_VENDOR_FROM_DATABASE=Prolific Technology, Inc. E: ID_MODEL_FROM_DATABASE=PL2303 Serial Port E: ID_PATH=pci-0000:00:14.0-usb-0:12:1.0 E: ID_PATH_TAG=pci-0000_00_14_0-usb-0_12_1_0 E: ID_MM_TTY_MANUAL_SCAN_ONLY=1
Hi
After upgrading the Linux kernel from 5.11.0-27 to 5.13.0-37 a device that uses a pl2303 usb serial chip no longer works.
This seems very similar to bug 1959110, and according to that it should be fixed, but somehow it's not.
# uname -a
Linux GAU233333LD04 5.13.0-37-generic #42~20.04.1-Ubuntu SMP Tue Mar 15 15:44:28 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
# journalctl -b -k -g pl2303 -o cat
usbcore: registered new interface driver pl2303
usbserial: USB Serial support registered for pl2303
pl2303 1-12:1.0: pl2303 converter detected
pl2303 1-12:1.0: unknown device type, please report to <email address hidden>
# udevadm info /sys/devices/ pci0000: 00/0000: 00:14.0/ usb1/1- 12/1-12: 1.0 pci0000: 00/0000: 00:14.0/ usb1/1- 12/1-12: 1.0 /devices/ pci0000: 00/0000: 00:14.0/ usb1/1- 12/1-12: 1.0 usb_interface 67b/2303/ 300 usb:v067Bp2303d 0300dc00dsc00dp 00icFFisc00ip00 in00 D=56177916 FROM_DATABASE= Prolific Technology, Inc. FROM_DATABASE= PL2303 Serial Port pci-0000: 00:14.0- usb-0:12: 1.0 TAG=pci- 0000_00_ 14_0-usb- 0_12_1_ 0 MANUAL_ SCAN_ONLY= 1
P: /devices/
L: 0
E: DEVPATH=
E: DEVTYPE=
E: PRODUCT=
E: TYPE=0/0/0
E: INTERFACE=255/0/0
E: MODALIAS=
E: SUBSYSTEM=usb
E: USEC_INITIALIZE
E: ID_VENDOR_
E: ID_MODEL_
E: ID_PATH=
E: ID_PATH_
E: ID_MM_TTY_