https://bugzilla.kernel.org/show_bug.cgi?id=211013 --- Comment #1 from Tianhao Chai (cth451@xxxxxxxxx) --- Apparently this ver_rom 0x11020000 has never been recorded in qca_devices_table[] defined in btusb.c. Before 5.10 (i.e. 5.9.x and possibly earlier), the function btusb_setup_qca() will short circuit and return 0 before querying the device table (the following from 5.9.16, btusb.c:3627): ver_rom = le32_to_cpu(ver.rom_version); /* Don't care about high ROM versions */ if (ver_rom & ~0xffffU) return 0; Since this check is removed in 5.10.x due to added support of WCN6855 (which has a high ROM version), the driver would return -ENODEV as this 0x11020000 doesn't exist in qca_devices_table in the first place. I am not sure how this should be resolved. We could check whether ver_rom == 0x11020000 and directly return 0 (and the card would work after that), but I think this is a very dirty approach. -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.
