Re: [PATCH v10 1/5] staging: vc04_services: vchiq_arm: Add new bus type and device type

Hi Umang,

Am 12.09.23 um 07:50 schrieb Umang Jain:

Hi Stephan

On 9/12/23 1:52 AM, Stefan Wahren wrote:

quoted

Hi Umang,

Am 11.09.23 um 16:07 schrieb Umang Jain:

quoted

...

Unfortunately the call of of_dma_configure() generates warnings likes
this (Raspberry Pi 3A+ with multi_v7_defconfig + VCHIQ):

[    9.206802] vchiq-bus bcm2835-audio: DMA mask not set
[    9.206892] vchiq-bus bcm2835-camera: DMA mask not set

huh, really weird, as on my RPi-3-b I get these set correctly and I
don't any such warning.

This warning comes from this line [1]. Did you test with the mainline
devicetree from [2] which must be specified in the config.txt? Be aware
the arm dts files has moved into a sub directory just like arm64. I
don't use U-Boot, just the vendor bootloader from Raspberry Pi OS.
Please look at [3] for the details.

I am even checking the ret value here, so if it can't set it, it will
log an error. I don't that getting logged on my end. Can you share you
entire dmesg output please?

Sure, see below

Also, I have tested this against arm64 kernel, I assume you are using
32-bit?

Correct. This is what i meant with multi_v7_defconfig. It's my prefered
configuration to test BCM2837 for 32 bit ARM.

quoted

In the old platform driver code we had something like

  pdevinfo.dma_mask = DMA_BIT_MASK(32);

So there is still something missing for our new bus driver.

[1] -
https://elixir.bootlin.com/linux/v6.6-rc1/source/drivers/of/device.c#L157
[2] -
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/broadcom?h=v6.6-rc1
[3] - https://gist.github.com/lategoodbye/c7317a42bf7f9c07f5a91baed8c68f75

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 6.6.0-rc1-00005-g87898f8cfe33
(stefanw@stefanw-SCHENKER) (arm-linux-gnueabihf-gcc (GCC) 11.3.1
20220604 [releases/gcc-11 revision
591c0f4b92548e3ae2e8173f4f93984b1c7f62bb], GNU ld
(Linaro_Binutils-2022.06) 2.37.20220122) #86 SMP Mon Sep 11 21:17:00
CEST 2023
[    0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7),
cr=10c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing
instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model A Plus Rev 1.0
[    0.000000] random: crng init done
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created CMA memory pool at 0x17800000,
size 64 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible
id shared-dma-pool
[    0.000000] OF: reserved mem: 0x17800000..0x1b7fffff (65536 KiB) map
reusable linux,cma
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000000000-0x000000001bffffff]
[    0.000000]   Normal   empty
[    0.000000]   HighMem  empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x000000001bffffff]
[    0.000000] Initmem setup node 0 [mem
0x0000000000000000-0x000000001bffffff]
[    0.000000] percpu: Embedded 16 pages/cpu s36180 r8192 d21164 u65536
[    0.000000] pcpu-alloc: s36180 r8192 d21164 u65536 alloc=16*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Kernel command line: video=HDMI-A-1:1920x1200M@60
dma.dmachans=0x7ff5 bcm2709.boardrev=0x9020e0 bcm2709.serial=0x48390b9c
bcm2709.uart_clock=48000000 bcm2709.disk_led_gpio=29
bcm2709.disk_led_active_low=0 smsc95xx.macaddr=B8:27:EB:39:0B:9C
vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000 
console=ttyS1,115200 console=tty1 root=PARTUUID=a5c5156c-02
rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
plymouth.ignore-serial-consoles
[    0.000000] Kernel parameter elevator= does not have any effect anymore.
                Please use sysfs to set IO scheduler for individual devices.
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144
bytes, linear)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072
bytes, linear)
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 113792
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 361268K/458752K available (15360K kernel code,
2470K rwdata, 6440K rodata, 2048K init, 416K bss, 31948K reserved,
65536K cma-reserved, 0K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] trace event string verifier disabled
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=16 to
nr_cpu_ids=4.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay
is 10 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on
contention.
[    0.000002] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps
every 2147483647500ns
[    0.000022] clocksource: timer: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000081] bcm2835: system timer (irq = 60)
[    0.002740] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[    0.002761] clocksource: arch_sys_counter: mask: 0xffffffffffffff
max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[    0.002778] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps
every 4398046511078ns
[    0.002795] Switching to timer-based delay loop, resolution 52ns
[    0.003698] Console: colour dummy device 80x30
[    0.003714] printk: console [tty1] enabled
[    0.004615] Calibrating delay loop (skipped), value calculated using
timer frequency.. 38.40 BogoMIPS (lpj=192000)
[    0.004661] CPU: Testing write buffer coherency: ok
[    0.004724] pid_max: default: 32768 minimum: 301
[    0.004877] Mount-cache hash table entries: 1024 (order: 0, 4096
bytes, linear)
[    0.004918] Mountpoint-cache hash table entries: 1024 (order: 0, 4096
bytes, linear)
[    0.005864] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.006739] Setting up static identity map for 0x300000 - 0x3000ac
[    0.007682] rcu: Hierarchical SRCU implementation.
[    0.007707] rcu:     Max phase no-delay instances is 1000.
[    0.010038] EFI services will not be available.
[    0.010319] smp: Bringing up secondary CPUs ...
[    0.011142] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.012181] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.013167] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.013406] smp: Brought up 1 node, 4 CPUs
[    0.013491] SMP: Total of 4 processors activated (153.60 BogoMIPS).
[    0.013518] CPU: All CPU(s) started in HYP mode.
[    0.013537] CPU: Virtualization extensions available.
[    0.014516] devtmpfs: initialized
[    0.022261] VFP support v0.3: implementor 41 architecture 3 part 40
variant 3 rev 4
[    0.022568] clocksource: jiffies: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.022621] futex hash table entries: 1024 (order: 4, 65536 bytes,
linear)
[    0.025174] pinctrl core: initialized pinctrl subsystem
[    0.027732] DMI not present or invalid.
[    0.028226] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.030852] DMA: preallocated 256 KiB pool for atomic coherent
allocations
[    0.035838] thermal_sys: Registered thermal governor 'step_wise'
[    0.035910] cpuidle: using governor menu
[    0.036454] No ATAGs?
[    0.036613] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4
watchpoint registers.
[    0.036651] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.039402] Serial: AMBA PL011 UART driver
[    0.067841] iommu: Default domain type: Translated
[    0.067886] iommu: DMA domain TLB invalidation policy: strict mode
[    0.068938] SCSI subsystem initialized
[    0.069165] libata version 3.00 loaded.
[    0.069441] usbcore: registered new interface driver usbfs
[    0.069502] usbcore: registered new interface driver hub
[    0.069568] usbcore: registered new device driver usb
[    0.069861] usb_phy_generic phy: dummy supplies not allowed for
exclusive requests
[    0.071286] pps_core: LinuxPPS API ver. 1 registered
[    0.071311] pps_core: Software ver. 5.3.6 - Copyright 2005-2007
Rodolfo Giometti [off-list ref]
[    0.071358] PTP clock support registered
[    0.071579] EDAC MC: Ver: 3.0.0
[    0.072267] scmi_core: SCMI protocol bus registered
[    0.074843] vgaarb: loaded
[    1.884992] clocksource: Switched to clocksource arch_sys_counter
[    1.901738] NET: Registered PF_INET protocol family
[    1.901985] IP idents hash table entries: 8192 (order: 4, 65536
bytes, linear)
[    1.903408] tcp_listen_portaddr_hash hash table entries: 512 (order:
0, 4096 bytes, linear)
[    1.903467] Table-perturb hash table entries: 65536 (order: 6, 262144
bytes, linear)
[    1.903506] TCP established hash table entries: 4096 (order: 2, 16384
bytes, linear)
[    1.903590] TCP bind hash table entries: 4096 (order: 4, 65536 bytes,
linear)
[    1.903780] TCP: Hash tables configured (established 4096 bind 4096)
[    1.903903] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[    1.903953] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes,
linear)
[    1.904097] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    1.904626] RPC: Registered named UNIX socket transport module.
[    1.904658] RPC: Registered udp transport module.
[    1.904680] RPC: Registered tcp transport module.
[    1.904699] RPC: Registered tcp-with-tls transport module.
[    1.904720] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.904752] PCI: CLS 0 bytes, default 64
[    1.906790] Initialise system trusted keyrings
[    1.907031] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[    1.907428] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    1.907895] NFS: Registering the id_resolver key type
[    1.907941] Key type id_resolver registered
[    1.907963] Key type id_legacy registered
[    1.908005] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    1.908032] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver
Registering...
[    1.908093] ntfs: driver 2.1.32 [Flags: R/O].
[    1.908391] Key type asymmetric registered
[    1.908416] Asymmetric key parser 'x509' registered
[    1.908511] Block layer SCSI generic (bsg) driver version 0.4 loaded
(major 246)
[    1.908545] io scheduler mq-deadline registered
[    1.908574] io scheduler kyber registered
[    1.908613] io scheduler bfq registered
[    1.929416] simple-framebuffer 1e330000.framebuffer: framebuffer at
0x1e330000, 0x8ca000 bytes
[    1.929483] simple-framebuffer 1e330000.framebuffer: format=a8r8g8b8,
mode=1920x1200x32, linelength=7680
[    1.960899] Console: switching to colour frame buffer device 240x75
[    1.991759] simple-framebuffer 1e330000.framebuffer: fb0: simplefb
registered!
[    2.068642] Serial: 8250/16550 driver, 5 ports, IRQ sharing enabled
[    2.072833] printk: console [ttyS1] disabled
[    2.073399] 3f215040.serial: ttyS1 at MMIO 0x3f215040 (irq = 86,
base_baud = 50000000) is a 16550
[    2.073651] printk: console [ttyS1] enabled
[    2.920538] SuperH (H)SCI(F) driver initialized
[    2.926208] msm_serial: driver initialized
[    2.930462] STMicroelectronics ASC driver initialized
[    2.936679] STM32 USART driver initialized
[    2.942745] bcm2835-rng 3f104000.rng: hwrng registered
[    2.963592] brd: module loaded
[    2.973113] loop: module loaded
[    2.978223] bcm2835-power bcm2835-power: Broadcom BCM2835 power
domains driver
[    2.998682] CAN device driver interface
[    3.003790] bgmac_bcma: Broadcom 47xx GBit MAC driver loaded
[    3.010882] e1000e: Intel(R) PRO/1000 Network Driver
[    3.016055] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    3.022233] igb: Intel(R) Gigabit Ethernet Network Driver
[    3.027849] igb: Copyright (c) 2007-2014 Intel Corporation.
[    3.037688] pegasus: Pegasus/Pegasus II USB Ethernet driver
[    3.043514] usbcore: registered new interface driver pegasus
[    3.049435] usbcore: registered new interface driver asix
[    3.055088] usbcore: registered new interface driver ax88179_178a
[    3.061433] usbcore: registered new interface driver cdc_ether
[    3.067537] usbcore: registered new interface driver smsc75xx
[    3.073532] usbcore: registered new interface driver smsc95xx
[    3.079540] usbcore: registered new interface driver net1080
[    3.085461] usbcore: registered new interface driver cdc_subset
[    3.091635] usbcore: registered new interface driver zaurus
[    3.097493] usbcore: registered new interface driver cdc_ncm
[    3.107490] usbcore: registered new interface driver usb-storage
[    3.118756] i2c_dev: i2c /dev entries driver
[    3.125053] i2c-bcm2835 3f805000.i2c: Could not read clock-frequency
property
[    3.143909] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    3.155422] sdhci: Secure Digital Host Controller Interface driver
[    3.161859] sdhci: Copyright(c) Pierre Ossman
[    3.168191] Synopsys Designware Multimedia Card Interface Driver
[    3.176079] sdhci-pltfm: SDHCI platform and OF driver helper
[    3.186318] sdhci-iproc 3f300000.mmc: allocated mmc-pwrseq
[    3.192194] ledtrig-cpu: registered to indicate activity on CPUs
[    3.200162] usbcore: registered new interface driver usbhid
[    3.206009] usbhid: USB HID core driver
[    3.210952] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[    3.221958] NET: Registered PF_INET6 protocol family
[    3.228309] Segment Routing with IPv6
[    3.230085] mmc1: SDHCI controller on 3f300000.mmc [3f300000.mmc]
using PIO
[    3.235506] In-situ OAM (IOAM) with IPv6
[    3.264571] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[    3.278548] NET: Registered PF_PACKET protocol family
[    3.290943] can: controller area network core
[    3.302686] NET: Registered PF_CAN protocol family
[    3.310422] sdhost-bcm2835 3f202000.mmc: loaded - DMA enabled (>1)
[    3.314775] can: raw protocol
[    3.338588] can: broadcast manager protocol
[    3.340768] mmc1: new high speed SDIO card at address 0001
[    3.345840] can: netlink gateway - max_hops=1
[    3.375015] Key type dns_resolver registered
[    3.386990] Registering SWP/SWPB emulation handler
[    3.410876] Loading compiled-in X.509 certificates
[    3.438851] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 114,
base_baud = 0) is a PL011 rev2
[    3.439796] mmc0: host does not support reading read-only switch,
assuming write-enable
[    3.446571] serial serial0: tty port ttyAMA0 registered
[    3.456776] mmc0: new high speed SDHC card at address 0007
[    3.465830] raspberrypi-firmware soc:firmware: Attached to firmware
from 2022-08-26T14:04:36
[    3.469479] mmcblk0: mmc0:0007 SDCIT 14.6 GiB
[    3.526657]  mmcblk0: p1 p2
[    4.026948] dwc2 3f980000.usb: supply vusb_d not found, using dummy
regulator
[    4.039587] dwc2 3f980000.usb: supply vusb_a not found, using dummy
regulator
[    4.104176] dwc2 3f980000.usb: DWC OTG Controller
[    4.116471] dwc2 3f980000.usb: new USB bus registered, assigned bus
number 1
[    4.131137] dwc2 3f980000.usb: irq 66, io mem 0x3f980000
[    4.144958] hub 1-0:1.0: USB hub found
[    4.152675] hub 1-0:1.0: 1 port detected
[    4.164850] clk: Disabling unused clocks
[    4.184045] EXT4-fs (mmcblk0p2): mounted filesystem
3857a514-b0f4-49ce-8430-34762068bb6f ro with ordered data mode. Quota
mode: disabled.
[    4.201851] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    4.214447] devtmpfs: mounted
[    4.222679] Freeing unused kernel image (initmem) memory: 2048K
[    4.232336] Run /sbin/init as init process
[    4.239831]   with arguments:
[    4.239834]     /sbin/init
[    4.239838]   with environment:
[    4.239841]     HOME=/
[    4.239844]     TERM=linux
[    4.843914] systemd[1]: System time before build time, advancing clock.
[    4.953515] systemd[1]: systemd 241 running in system mode. (+PAM
+AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP
+GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN
-PCRE2 default-hierarchy=hybrid)
[    4.989282] systemd[1]: Detected architecture arm.
[    5.020664] systemd[1]: Set hostname to <raspberrypi>.
[    5.432605] systemd[1]: File
/lib/systemd/system/systemd-journald.service:12 configures an IP
firewall (IPAddressDeny=any), but the local system does not support
BPF/cgroup based firewalling.
[    5.456249] systemd[1]: Proceeding WITHOUT firewalling in effect!
(This warning is only shown for the first loaded unit using IP firewalling.)
[    5.842271] systemd[1]: Listening on Journal Socket (/dev/log).
[    5.860471] systemd[1]: Listening on fsck to fsckd communication Socket.
[    5.876658] systemd[1]: Listening on udev Control Socket.
[    5.890786] systemd[1]: Listening on udev Kernel Socket.
[    5.905241] systemd[1]: Created slice User and Session Slice.
[    8.050246] EXT4-fs (mmcblk0p2): re-mounted
3857a514-b0f4-49ce-8430-34762068bb6f r/w. Quota mode: disabled.
[    8.167738] systemd-journald[105]: Received request to flush runtime
journal from PID 1
[    9.190328] vchiq: module is from the staging directory, the quality
is unknown, you have been warned.
[    9.206802] vchiq-bus bcm2835-audio: DMA mask not set
[    9.206892] vchiq-bus bcm2835-camera: DMA mask not set
[    9.427708] Bluetooth: Core ver 2.22
[    9.427791] NET: Registered PF_BLUETOOTH protocol family
[    9.427800] Bluetooth: HCI device and connection manager initialized
[    9.427824] Bluetooth: HCI socket layer initialized
[    9.427833] Bluetooth: L2CAP socket layer initialized
[    9.427847] Bluetooth: SCO socket layer initialized
[    9.547412] Bluetooth: HCI UART driver ver 2.3
[    9.547448] Bluetooth: HCI UART protocol H4 registered
[    9.547942] Bluetooth: HCI UART protocol Broadcom registered
[    9.549244] hci_uart_bcm serial0-0: supply vbat not found, using
dummy regulator
[    9.549456] hci_uart_bcm serial0-0: supply vddio not found, using
dummy regulator
[    9.549522] hci_uart_bcm serial0-0: No reset resource, using default
baud rate
[    9.554412] cfg80211: Loading compiled-in X.509 certificates for
regulatory database
[    9.665377] uart-pl011 3f201000.serial: no DMA platform data
[    9.868055] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    9.932284] Bluetooth: hci0: BCM: chip id 107
[    9.934550] Bluetooth: hci0: BCM: features 0x2f
[    9.939239] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43455-sdio for chip BCM4345/6
[    9.957852] Bluetooth: hci0: BCM4345C0
[    9.957877] Bluetooth: hci0: BCM4345C0 (003.001.025) build 0000
[    9.967333] brcmfmac mmc1:0001:1: Direct firmware load for
brcm/brcmfmac43455-sdio.raspberrypi,3-model-a-plus.bin failed with error -2
[   10.053005] Bluetooth: hci0: BCM4345C0 'brcm/BCM4345C0.hcd' Patch
[   10.061320] Console: switching to colour dummy device 80x30
[   10.084466] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4])
[   10.122320] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops [vc4])
[   10.122547] vc4-drm soc:gpu: bound 3f806000.vec (ops vc4_vec_ops [vc4])
[   10.122730] vc4-drm soc:gpu: bound 3f004000.txp (ops vc4_txp_ops [vc4])
[   10.122872] vc4-drm soc:gpu: bound 3f206000.pixelvalve (ops
vc4_crtc_ops [vc4])
[   10.123004] vc4-drm soc:gpu: bound 3f207000.pixelvalve (ops
vc4_crtc_ops [vc4])
[   10.123133] vc4-drm soc:gpu: bound 3f807000.pixelvalve (ops
vc4_crtc_ops [vc4])
[   10.123258] vc4-drm soc:gpu: bound 3fc00000.v3d (ops vc4_v3d_ops [vc4])
[   10.128918] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0
[   10.218980] Console: switching to colour frame buffer device 240x75
[   10.245316] vc4-drm soc:gpu: [drm] fb0: vc4drmfb frame buffer device
[   10.274786] snd_bcm2835: module is from the staging directory, the
quality is unknown, you have been warned.
[   10.277567] bcm2835-audio bcm2835-audio: card created with 8 channels
[   10.330733] mc: Linux media interface: v0.10
[   10.341921] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob
available (err=-2)
[   10.342362] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0:
Jan  4 2021 19:56:29 version 7.45.229 (617f1f5 CY) FWID 01-2dbd9d2e
[   10.407854] videodev: Linux video capture interface: v2.00
[   10.459897] bcm2835_mmal_vchiq: module is from the staging directory,
the quality is unknown, you have been warned.
[   10.470977] bcm2835_v4l2: module is from the staging directory, the
quality is unknown, you have been warned.
[   10.780230] alsactl[236]: memfd_create() called without MFD_EXEC or
MFD_NOEXEC_SEAL set
[   10.780230] alsactl[216]: memfd_create() called without MFD_EXEC or
MFD_NOEXEC_SEAL set
[   13.854105] Adding 102396k swap on /var/swap.  Priority:-2 extents:1
across:102396k SS
[   15.909255] Bluetooth: hci0: BCM: features 0x2f
[   15.932508] Bluetooth: hci0: BCM43455 37.4MHz Raspberry Pi 3+
[   15.932532] Bluetooth: hci0: BCM4345C0 (003.001.025) build 0342
[   16.593213] Bluetooth: MGMT ver 1.22
[   22.184944] usb 1-1: new low-speed USB device number 2 using dwc2
[   22.446694] input: PixArt Microsoft USB Optical Mouse as
/devices/platform/soc/3f980000.usb/usb1/1-1/1-1:1.0/0003:045E:00CB.0001/input/input0
[   22.447000] hid-generic 0003:045E:00CB.0001: input: USB HID v1.11
Mouse [PixArt Microsoft USB Optical Mouse] on usb-3f980000.usb-1/input0
[   41.545014] usb 1-1: USB disconnect, device number 2
[   44.954930] usb 1-1: new low-speed USB device number 3 using dwc2
[   45.226584] input: HID 046a:0011 as
/devices/platform/soc/3f980000.usb/usb1/1-1/1-1:1.0/0003:046A:0011.0002/input/input1
[   45.295525] hid-generic 0003:046A:0011.0002: input: USB HID v1.11
Keyboard [HID 046a:0011] on usb-3f980000.usb-1/input0

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