Error compiling on Raspberry Pi 3 Model B

[DarkFighterLuke]

Hello, I'm manually trying to compile this driver on raspberry pi 3 but I get this error: /include/uapi/linux/types.h:5:10: fatal error: asm/types.h: No such file or directory Makefile is configured as per guide.

How should I fix it?

Thanks.

EDIT: Setting RPI to y instead of RPI3 let me compile. However even after modprobe no new interfaces are shown in ifconfig and weird things in dmesg when i plug in the dongle:

[  435.783610] usb 1-1.2: new high-speed USB device number 5 using dwc_otg
[  435.914773] usb 1-1.2: New USB device found, idVendor=0bda, idProduct=c820, bcdDevice= 2.00
[  435.914790] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  435.914804] usb 1-1.2: Product: 802.11ac NIC
[  435.914818] usb 1-1.2: Manufacturer: Realtek
[  435.914831] usb 1-1.2: SerialNumber: 123456
[  436.101808] Bluetooth: Core ver 2.22
[  436.101878] NET: Registered protocol family 31
[  436.101884] Bluetooth: HCI device and connection manager initialized
[  436.101904] Bluetooth: HCI socket layer initialized
[  436.101914] Bluetooth: L2CAP socket layer initialized
[  436.101931] Bluetooth: SCO socket layer initialized
[  436.206991] 8821cu: loading out-of-tree module taints kernel.
[  436.236212] Bluetooth: hci0: RTL: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[  436.238183] Bluetooth: hci0: RTL: rom_version status=0 version=1
[  436.238196] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_fw.bin
[  436.238594] usbcore: registered new interface driver btusb
[  436.244577] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_config.bin
[  436.247611] Bluetooth: hci0: RTL: cfg_sz 10, total sz 21678
[  436.513388] ------------[ cut here ]------------
[  436.513581] WARNING: CPU: 1 PID: 1434 at net/wireless/core.c:867 wiphy_register+0xa08/0xd3c [cfg80211]
[  436.513653] Modules linked in: 8821cu(O+) btusb btrtl btintel btbcm bluetooth ecdh_generic ecc brcmfmac brcmutil sha256_generic libsha256 joydev cfg80211 rfkill bcm2835_isp(C) bcm2835_mmal_vchiq(C) videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_common raspberrypi_hwmon videodev mc vc_sm_cma(C) uio_pdrv_genirq uio fixed squashfs ip_tables x_tables ipv6
[  436.513742] CPU: 1 PID: 1434 Comm: systemd-udevd Tainted: G         C O      5.4.79-v7+ #1373
[  436.513745] Hardware name: BCM2835
[  436.513748] Backtrace: 
[  436.513765] [<8010dfa4>] (dump_backtrace) from [<8010e324>] (show_stack+0x20/0x24)
[  436.513774]  r7:ffffffff r6:00000000 r5:60000013 r4:80e97f70
[  436.513785] [<8010e304>] (show_stack) from [<80901174>] (dump_stack+0xd8/0x11c)
[  436.513794] [<8090109c>] (dump_stack) from [<80120548>] (__warn+0xe0/0x108)
[  436.513801]  r10:00000001 r9:00000009 r8:7f13ba08 r7:00000363 r6:00000009 r5:7f13ba08
[  436.513804]  r4:7f19dcac r3:00000000
[  436.513812] [<80120468>] (__warn) from [<80120910>] (warn_slowpath_fmt+0x70/0xc0)
[  436.513817]  r7:00000363 r6:7f19dcac r5:80e04f88 r4:00000000
[  436.513968] [<801208a4>] (warn_slowpath_fmt) from [<7f13ba08>] (wiphy_register+0xa08/0xd3c [cfg80211])
[  436.513975]  r9:00000000 r8:0000003a r7:7f1b2540 r6:ffffffea r5:80e04f88 r4:a2fed9c0
[  436.514400] [<7f13b000>] (wiphy_register [cfg80211]) from [<7f37014c>] (rtw_wiphy_register+0x24/0x28 [8821cu])
[  436.514407]  r10:00000001 r9:7f420d90 r8:be934e66 r7:00000000 r6:be935000 r5:a2fed000
[  436.514410]  r4:a2fed9c0
[  436.514905] [<7f370128>] (rtw_wiphy_register [8821cu]) from [<7f3704e0>] (rtw_cfg80211_ndev_res_register+0x20/0x2c [8821cu])
[  436.514919]  r5:a2fed000 r4:be932000
[  436.515389] [<7f3704c0>] (rtw_cfg80211_ndev_res_register [8821cu]) from [<7f359678>] (rtw_os_ndev_register+0x108/0x160 [8821cu])
[  436.515849] [<7f359570>] (rtw_os_ndev_register [8821cu]) from [<7f35a298>] (rtw_os_ndevs_register+0x90/0x138 [8821cu])
[  436.515864]  r9:7f420d90 r8:be932000 r7:7f420d50 r6:be932000 r5:b558e000 r4:00000000
[  436.516333] [<7f35a208>] (rtw_os_ndevs_register [8821cu]) from [<7f35a3b4>] (rtw_os_ndevs_init+0x34/0x4c [8821cu])
[  436.516340]  r10:b558e008 r9:b558e854 r8:b652b478 r7:b652b400 r6:be932000 r5:b7ea4a00
[  436.516344]  r4:b558e000 r3:00000001
[  436.516803] [<7f35a380>] (rtw_os_ndevs_init [8821cu]) from [<7f35b8e4>] (rtw_drv_init+0x2c0/0x38c [8821cu])
[  436.516811]  r5:b7ea4a00 r4:b558e000
[  436.517051] [<7f35b624>] (rtw_drv_init [8821cu]) from [<806da250>] (usb_probe_interface+0xe0/0x258)
[  436.517058]  r10:ffffffed r9:7f43e168 r8:b7ea4a00 r7:00000000 r6:7f43e0c8 r5:b652b400
[  436.517061]  r4:b7ea4a20
[  436.517069] [<806da170>] (usb_probe_interface) from [<8065b3a8>] (really_probe+0x1f0/0x354)
[  436.517079]  r10:00000000 r9:0000001c r8:7f43e0c8 r7:00000000 r6:80f51eb8 r5:b7ea4a20
[  436.517083]  r4:80f51eb4 r3:806da170
[  436.517090] [<8065b1b8>] (really_probe) from [<8065b704>] (driver_probe_device+0x70/0x194)
[  436.517097]  r10:80e04f88 r9:b3e8ff30 r8:7f47ef00 r7:8065ba20 r6:7f43e0c8 r5:7f43e0c8
[  436.517100]  r4:b7ea4a20 r3:00000000
[  436.517107] [<8065b694>] (driver_probe_device) from [<8065ba18>] (device_driver_attach+0x68/0x70)
[  436.517113]  r9:b3e8ff30 r8:7f47ef00 r7:8065ba20 r6:7f43e0c8 r5:00000000 r4:b7ea4a20
[  436.517120] [<8065b9b0>] (device_driver_attach) from [<8065ba88>] (__driver_attach+0x68/0xdc)
[  436.517125]  r7:8065ba20 r6:b7ea4a20 r5:7f43e0c8 r4:00000000
[  436.517133] [<8065ba20>] (__driver_attach) from [<806593a0>] (bus_for_each_dev+0x84/0xc4)
[  436.517139]  r7:8065ba20 r6:7f43e0c8 r5:80e04f88 r4:b95816b4
[  436.517147] [<8065931c>] (bus_for_each_dev) from [<8065abf0>] (driver_attach+0x2c/0x30)
[  436.517152]  r7:00000000 r6:b5ce3680 r5:80e765dc r4:7f43e0c8
[  436.517160] [<8065abc4>] (driver_attach) from [<8065a608>] (bus_add_driver+0x1c8/0x1e8)
[  436.517167] [<8065a440>] (bus_add_driver) from [<8065c144>] (driver_register+0x84/0x118)
[  436.517172]  r7:7f420dc8 r6:7f43e0c8 r5:80e765dc r4:7f43e0c8
[  436.517179] [<8065c0c0>] (driver_register) from [<806d8da0>] (usb_register_driver+0x88/0x144)
[  436.517183]  r5:80e765dc r4:7f43e090
[  436.517421] [<806d8d18>] (usb_register_driver) from [<7f4dc060>] (rtw_drv_entry+0x60/0x1000 [8821cu])
[  436.517429]  r9:b3e8ff30 r8:7f47ef00 r7:00000000 r6:a2fdf7c0 r5:7f4dc000 r4:7f43e090
[  436.517665] [<7f4dc000>] (rtw_drv_entry [8821cu]) from [<801030c4>] (do_one_initcall+0x50/0x25c)
[  436.517672]  r5:7f4dc000 r4:80e04f88
[  436.517681] [<80103074>] (do_one_initcall) from [<801bdf5c>] (do_init_module+0x70/0x264)
[  436.517687]  r8:7f47ef00 r7:a2fdf800 r6:a2fdf7c0 r5:a2fdf8c0 r4:7f47ef00
[  436.517694] [<801bdeec>] (do_init_module) from [<801c05b4>] (load_module+0x2368/0x266c)
[  436.517698]  r6:a2fdf7c0 r5:00000002 r4:00000002
[  436.517705] [<801be24c>] (load_module) from [<801c0b1c>] (sys_finit_module+0xd4/0xec)
[  436.517712]  r10:0000017b r9:b3e8e000 r8:801011c4 r7:00000006 r6:76da08e0 r5:00000000
[  436.517715]  r4:80e04f88
[  436.517722] [<801c0a48>] (sys_finit_module) from [<801011a4>] (__sys_trace_return+0x0/0x1c)
[  436.517726] Exception stack(0xb3e8ffa8 to 0xb3e8fff0)
[  436.517731] ffa0:                   6beeb700 00000000 00000006 76da08e0 00000000 76da13f4
[  436.517738] ffc0: 6beeb700 00000000 00000000 0000017b 014e8878 004b21dc 015219a8 00000000
[  436.517742] ffe0: 7e941218 7e941208 76d979d8 76e87af0
[  436.517748]  r7:0000017b r6:00000000 r5:00000000 r4:6beeb700
[  436.517752] ---[ end trace 2d17caad49334e08 ]---
[  436.517759] ------------[ cut here ]------------
[  436.517998] WARNING: CPU: 1 PID: 1434 at /home/dietpi/rtl8821CU/os_dep/linux/os_intfs.c:1505 rtw_os_ndev_register+0x88/0x160 [8821cu]
[  436.518003] Modules linked in: 8821cu(O+) btusb btrtl btintel btbcm bluetooth ecdh_generic ecc brcmfmac brcmutil sha256_generic libsha256 joydev cfg80211 rfkill bcm2835_isp(C) bcm2835_mmal_vchiq(C) videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_common raspberrypi_hwmon videodev mc vc_sm_cma(C) uio_pdrv_genirq uio fixed squashfs ip_tables x_tables ipv6
[  436.518087] CPU: 1 PID: 1434 Comm: systemd-udevd Tainted: G        WC O      5.4.79-v7+ #1373
[  436.518089] Hardware name: BCM2835
[  436.518091] Backtrace: 
[  436.518102] [<8010dfa4>] (dump_backtrace) from [<8010e324>] (show_stack+0x20/0x24)
[  436.518107]  r7:ffffffff r6:00000000 r5:60000013 r4:80e97f70
[  436.518117] [<8010e304>] (show_stack) from [<80901174>] (dump_stack+0xd8/0x11c)
[  436.518126] [<8090109c>] (dump_stack) from [<80120548>] (__warn+0xe0/0x108)
[  436.518132]  r10:00000001 r9:00000009 r8:7f3595f8 r7:000005e1 r6:00000009 r5:7f3595f8
[  436.518136]  r4:7f420d50 r3:00000000
[  436.518143] [<80120468>] (__warn) from [<80120910>] (warn_slowpath_fmt+0x70/0xc0)
[  436.518149]  r7:000005e1 r6:7f420d50 r5:80e04f88 r4:00000000
[  436.518388] [<801208a4>] (warn_slowpath_fmt) from [<7f3595f8>] (rtw_os_ndev_register+0x88/0x160 [8821cu])
[  436.518397]  r9:7f420d90 r8:be934e66 r7:00000000 r6:be935000 r5:a2fed000 r4:be932000
[  436.518859] [<7f359570>] (rtw_os_ndev_register [8821cu]) from [<7f35a298>] (rtw_os_ndevs_register+0x90/0x138 [8821cu])
[  436.518869]  r9:7f420d90 r8:be932000 r7:7f420d50 r6:be932000 r5:b558e000 r4:00000000
[  436.519331] [<7f35a208>] (rtw_os_ndevs_register [8821cu]) from [<7f35a3b4>] (rtw_os_ndevs_init+0x34/0x4c [8821cu])
[  436.519338]  r10:b558e008 r9:b558e854 r8:b652b478 r7:b652b400 r6:be932000 r5:b7ea4a00
[  436.519341]  r4:b558e000 r3:00000001
[  436.519801] [<7f35a380>] (rtw_os_ndevs_init [8821cu]) from [<7f35b8e4>] (rtw_drv_init+0x2c0/0x38c [8821cu])
[  436.519809]  r5:b7ea4a00 r4:b558e000
[  436.520048] [<7f35b624>] (rtw_drv_init [8821cu]) from [<806da250>] (usb_probe_interface+0xe0/0x258)
[  436.520055]  r10:ffffffed r9:7f43e168 r8:b7ea4a00 r7:00000000 r6:7f43e0c8 r5:b652b400
[  436.520058]  r4:b7ea4a20
[  436.520066] [<806da170>] (usb_probe_interface) from [<8065b3a8>] (really_probe+0x1f0/0x354)
[  436.520076]  r10:00000000 r9:0000001c r8:7f43e0c8 r7:00000000 r6:80f51eb8 r5:b7ea4a20
[  436.520081]  r4:80f51eb4 r3:806da170
[  436.520087] [<8065b1b8>] (really_probe) from [<8065b704>] (driver_probe_device+0x70/0x194)
[  436.520094]  r10:80e04f88 r9:b3e8ff30 r8:7f47ef00 r7:8065ba20 r6:7f43e0c8 r5:7f43e0c8
[  436.520097]  r4:b7ea4a20 r3:00000000
[  436.520103] [<8065b694>] (driver_probe_device) from [<8065ba18>] (device_driver_attach+0x68/0x70)
[  436.520110]  r9:b3e8ff30 r8:7f47ef00 r7:8065ba20 r6:7f43e0c8 r5:00000000 r4:b7ea4a20
[  436.520117] [<8065b9b0>] (device_driver_attach) from [<8065ba88>] (__driver_attach+0x68/0xdc)
[  436.520122]  r7:8065ba20 r6:b7ea4a20 r5:7f43e0c8 r4:00000000
[  436.520129] [<8065ba20>] (__driver_attach) from [<806593a0>] (bus_for_each_dev+0x84/0xc4)
[  436.520135]  r7:8065ba20 r6:7f43e0c8 r5:80e04f88 r4:b95816b4
[  436.520143] [<8065931c>] (bus_for_each_dev) from [<8065abf0>] (driver_attach+0x2c/0x30)
[  436.520148]  r7:00000000 r6:b5ce3680 r5:80e765dc r4:7f43e0c8
[  436.520156] [<8065abc4>] (driver_attach) from [<8065a608>] (bus_add_driver+0x1c8/0x1e8)
[  436.520163] [<8065a440>] (bus_add_driver) from [<8065c144>] (driver_register+0x84/0x118)
[  436.520168]  r7:7f420dc8 r6:7f43e0c8 r5:80e765dc r4:7f43e0c8
[  436.520175] [<8065c0c0>] (driver_register) from [<806d8da0>] (usb_register_driver+0x88/0x144)
[  436.520179]  r5:80e765dc r4:7f43e090
[  436.520417] [<806d8d18>] (usb_register_driver) from [<7f4dc060>] (rtw_drv_entry+0x60/0x1000 [8821cu])
[  436.520424]  r9:b3e8ff30 r8:7f47ef00 r7:00000000 r6:a2fdf7c0 r5:7f4dc000 r4:7f43e090
[  436.520660] [<7f4dc000>] (rtw_drv_entry [8821cu]) from [<801030c4>] (do_one_initcall+0x50/0x25c)
[  436.520668]  r5:7f4dc000 r4:80e04f88
[  436.520677] [<80103074>] (do_one_initcall) from [<801bdf5c>] (do_init_module+0x70/0x264)
[  436.520683]  r8:7f47ef00 r7:a2fdf800 r6:a2fdf7c0 r5:a2fdf8c0 r4:7f47ef00
[  436.520690] [<801bdeec>] (do_init_module) from [<801c05b4>] (load_module+0x2368/0x266c)
[  436.520694]  r6:a2fdf7c0 r5:00000002 r4:00000002
[  436.520701] [<801be24c>] (load_module) from [<801c0b1c>] (sys_finit_module+0xd4/0xec)
[  436.520707]  r10:0000017b r9:b3e8e000 r8:801011c4 r7:00000006 r6:76da08e0 r5:00000000
[  436.520710]  r4:80e04f88
[  436.520718] [<801c0a48>] (sys_finit_module) from [<801011a4>] (__sys_trace_return+0x0/0x1c)
[  436.520721] Exception stack(0xb3e8ffa8 to 0xb3e8fff0)
[  436.520727] ffa0:                   6beeb700 00000000 00000006 76da08e0 00000000 76da13f4
[  436.520734] ffc0: 6beeb700 00000000 00000000 0000017b 014e8878 004b21dc 015219a8 00000000
[  436.520738] ffe0: 7e941218 7e941208 76d979d8 76e87af0
[  436.520743]  r7:0000017b r6:00000000 r5:00000000 r4:6beeb700
[  436.520748] ---[ end trace 2d17caad49334e09 ]---
[  436.563545] ------------[ cut here ]------------
[  436.563877] WARNING: CPU: 1 PID: 1434 at /home/dietpi/rtl8821CU/os_dep/linux/os_intfs.c:2739 rtw_os_ndevs_register+0x108/0x138 [8821cu]
[  436.563883] Modules linked in: 8821cu(O+) btusb btrtl btintel btbcm bluetooth ecdh_generic ecc brcmfmac brcmutil sha256_generic libsha256 joydev cfg80211 rfkill bcm2835_isp(C) bcm2835_mmal_vchiq(C) videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_common raspberrypi_hwmon videodev mc vc_sm_cma(C) uio_pdrv_genirq uio fixed squashfs ip_tables x_tables ipv6
[  436.563967] CPU: 1 PID: 1434 Comm: systemd-udevd Tainted: G        WC O      5.4.79-v7+ #1373
[  436.563970] Hardware name: BCM2835
[  436.563973] Backtrace: 
[  436.563986] [<8010dfa4>] (dump_backtrace) from [<8010e324>] (show_stack+0x20/0x24)
[  436.563992]  r7:ffffffff r6:00000000 r5:60000013 r4:80e97f70
[  436.564002] [<8010e304>] (show_stack) from [<80901174>] (dump_stack+0xd8/0x11c)
[  436.564011] [<8090109c>] (dump_stack) from [<80120548>] (__warn+0xe0/0x108)
[  436.564019]  r10:00000001 r9:00000009 r8:7f35a310 r7:00000ab3 r6:00000009 r5:7f35a310
[  436.564023]  r4:7f420d50 r3:00000000
[  436.564030] [<80120468>] (__warn) from [<80120910>] (warn_slowpath_fmt+0x70/0xc0)
[  436.564036]  r7:00000ab3 r6:7f420d50 r5:80e04f88 r4:00000000
[  436.564304] [<801208a4>] (warn_slowpath_fmt) from [<7f35a310>] (rtw_os_ndevs_register+0x108/0x138 [8821cu])
[  436.564311]  r9:7f420d90 r8:be932000 r7:7f420d50 r6:00000000 r5:b558e000 r4:00000000
[  436.564775] [<7f35a208>] (rtw_os_ndevs_register [8821cu]) from [<7f35a3b4>] (rtw_os_ndevs_init+0x34/0x4c [8821cu])
[  436.564782]  r10:b558e008 r9:b558e854 r8:b652b478 r7:b652b400 r6:be932000 r5:b7ea4a00
[  436.564786]  r4:b558e000 r3:00000001
[  436.565245] [<7f35a380>] (rtw_os_ndevs_init [8821cu]) from [<7f35b8e4>] (rtw_drv_init+0x2c0/0x38c [8821cu])
[  436.565249]  r5:b7ea4a00 r4:b558e000
[  436.565484] [<7f35b624>] (rtw_drv_init [8821cu]) from [<806da250>] (usb_probe_interface+0xe0/0x258)
[  436.565491]  r10:ffffffed r9:7f43e168 r8:b7ea4a00 r7:00000000 r6:7f43e0c8 r5:b652b400
[  436.565494]  r4:b7ea4a20
[  436.565503] [<806da170>] (usb_probe_interface) from [<8065b3a8>] (really_probe+0x1f0/0x354)
[  436.565510]  r10:00000000 r9:0000001c r8:7f43e0c8 r7:00000000 r6:80f51eb8 r5:b7ea4a20
[  436.565513]  r4:80f51eb4 r3:806da170
[  436.565521] [<8065b1b8>] (really_probe) from [<8065b704>] (driver_probe_device+0x70/0x194)
[  436.565527]  r10:80e04f88 r9:b3e8ff30 r8:7f47ef00 r7:8065ba20 r6:7f43e0c8 r5:7f43e0c8
[  436.565531]  r4:b7ea4a20 r3:00000000
[  436.565538] [<8065b694>] (driver_probe_device) from [<8065ba18>] (device_driver_attach+0x68/0x70)
[  436.565544]  r9:b3e8ff30 r8:7f47ef00 r7:8065ba20 r6:7f43e0c8 r5:00000000 r4:b7ea4a20
[  436.565551] [<8065b9b0>] (device_driver_attach) from [<8065ba88>] (__driver_attach+0x68/0xdc)
[  436.565556]  r7:8065ba20 r6:b7ea4a20 r5:7f43e0c8 r4:00000000
[  436.565565] [<8065ba20>] (__driver_attach) from [<806593a0>] (bus_for_each_dev+0x84/0xc4)
[  436.565570]  r7:8065ba20 r6:7f43e0c8 r5:80e04f88 r4:b95816b4
[  436.565579] [<8065931c>] (bus_for_each_dev) from [<8065abf0>] (driver_attach+0x2c/0x30)
[  436.565584]  r7:00000000 r6:b5ce3680 r5:80e765dc r4:7f43e0c8
[  436.565592] [<8065abc4>] (driver_attach) from [<8065a608>] (bus_add_driver+0x1c8/0x1e8)
[  436.565599] [<8065a440>] (bus_add_driver) from [<8065c144>] (driver_register+0x84/0x118)
[  436.565605]  r7:7f420dc8 r6:7f43e0c8 r5:80e765dc r4:7f43e0c8
[  436.565612] [<8065c0c0>] (driver_register) from [<806d8da0>] (usb_register_driver+0x88/0x144)
[  436.565616]  r5:80e765dc r4:7f43e090
[  436.565849] [<806d8d18>] (usb_register_driver) from [<7f4dc060>] (rtw_drv_entry+0x60/0x1000 [8821cu])
[  436.565856]  r9:b3e8ff30 r8:7f47ef00 r7:00000000 r6:a2fdf7c0 r5:7f4dc000 r4:7f43e090
[  436.566091] [<7f4dc000>] (rtw_drv_entry [8821cu]) from [<801030c4>] (do_one_initcall+0x50/0x25c)
[  436.566095]  r5:7f4dc000 r4:80e04f88
[  436.566103] [<80103074>] (do_one_initcall) from [<801bdf5c>] (do_init_module+0x70/0x264)
[  436.566109]  r8:7f47ef00 r7:a2fdf800 r6:a2fdf7c0 r5:a2fdf8c0 r4:7f47ef00
[  436.566116] [<801bdeec>] (do_init_module) from [<801c05b4>] (load_module+0x2368/0x266c)
[  436.566120]  r6:a2fdf7c0 r5:00000002 r4:00000002
[  436.566127] [<801be24c>] (load_module) from [<801c0b1c>] (sys_finit_module+0xd4/0xec)
[  436.566134]  r10:0000017b r9:b3e8e000 r8:801011c4 r7:00000006 r6:76da08e0 r5:00000000
[  436.566136]  r4:80e04f88
[  436.566144] [<801c0a48>] (sys_finit_module) from [<801011a4>] (__sys_trace_return+0x0/0x1c)
[  436.566147] Exception stack(0xb3e8ffa8 to 0xb3e8fff0)
[  436.566153] ffa0:                   6beeb700 00000000 00000006 76da08e0 00000000 76da13f4
[  436.566160] ffc0: 6beeb700 00000000 00000000 0000017b 014e8878 004b21dc 015219a8 00000000
[  436.566164] ffe0: 7e941218 7e941208 76d979d8 76e87af0
[  436.566170]  r7:0000017b r6:00000000 r5:00000000 r4:6beeb700
[  436.566174] ---[ end trace 2d17caad49334e0a ]---
[  436.567005] usbcore: registered new interface driver rtl8821cu
[  436.745082] Bluetooth: hci0: RTL: fw version 0x826ca99e
[  438.883620] WARN::dwc_otg_hcd_urb_dequeue:639: Timed out waiting for FSM NP transfer to complete on 4

[mi-hol]

A working solution can be found on RPI forum https://www.raspberrypi.org/forums/viewtopic.php?p=1785311#p1785311