b43: probe of bcma0:1 failed with error -524

b43: probe of bcma0:1 failed with error -524

[Paul Menzel]

Dear Linux folks,


On an Acer TravelMate 5735Z, Linux’ b43 driver logs a probe error.

```
[    0.000000] Linux version 5.10.0-5-amd64 
(debian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.1-6) 10.2.1 
20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 
5.10.26-1 (2021-03-27)
[…]
[    0.000000] DMI: Acer TravelMate 5735Z/BA51_MV, BIOS V1.14 07/26/2011
[…]
[    5.301664] Support for cores revisions 0x17 and 0x18 disabled by 
module param allhwsupport=0. Try b43.allhwsupport=1
[    5.301682] b43: probe of bcma0:1 failed with error -524
[    5.303510] Broadcom 43xx driver loaded [ Features: PNLS ]
[    5.316266] fbcon: i915drmfb (fb0) is primary device
[    5.318422] videodev: Linux video capture interface: v2.00
[    5.323240] usbcore: registered new interface driver uas
[    5.325700] ums-realtek 3-5:1.0: USB Mass Storage device detected
[    5.378133] scsi host4: usb-storage 3-5:1.0
[    5.378328] usbcore: registered new interface driver ums-realtek
[    5.387582] brcmsmac bcma0:1: mfg 4bf core 812 rev 23 class 0 irq 17
[    5.388489] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[    5.425813] battery: ACPI: Battery Slot [BAT0] (battery present)
[    5.467879] tg3 0000:05:00.0 enp5s0: Link is down
[    5.491758] uvcvideo: Found UVC 1.00 device 1.3M WebCam (04f2:b1d8)
[    5.527025] input: 1.3M WebCam: 1.3M WebCam as 
/devices/pci0000:00/0000:00:1d.7/usb3/3-4/3-4:1.0/input/input14
[    5.527478] usbcore: registered new interface driver uvcvideo
[    5.527479] USB Video Class driver (1.1.1)
[    5.532356] brcmsmac bcma0:1: firmware: direct-loading firmware 
brcm/bcm43xx-0.fw
[    5.532709] brcmsmac bcma0:1: firmware: direct-loading firmware 
brcm/bcm43xx_hdr-0.fw
[    5.586551] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos 
enabled: false (implement)
[    5.586561] brcmsmac bcma0:1: brcms_ops_config: change power-save 
mode: false (implement)
[    5.920575] brcmsmac bcma0:1: brcms_ops_bss_info_changed: qos 
enabled: false (implement)
[    5.920583] brcmsmac bcma0:1: brcms_ops_config: change power-save 
mode: false (implement)
[…]
```

The wireless device works, and it looks like it’s using the driver 
brcmsmac. Should the b43 driver be involved for the device here? Though 
I do not know what error -524 is exactly.


Kind regards,

Paul

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