[unconfirmed bug] missing firmware configuration `brcm/brcmfmac43602-pcie.txt`

[unconfirmed bug] missing firmware configuration `brcm/brcmfmac43602-pcie.txt`

[Josh Marshall]

 Hello,

First time contacting a kernel mailing list.

I've been trying to fix the wireless on my laptop ( MacBookPro12,1 ).  It has very weak signal strength.  I have at least partially read through the following:

    https://askubuntu.com/questions/775011/macbook-pro-16-04-wifi-driver-installed-but-not-available
    https://askubuntu.com/questions/1064442/wifi-not-working-with-bcm43602-on-ubuntu-18-04
    https://askubuntu.com/questions/622988/wifi-issues-with-macbook-pro-retina-early-2015-12-2-on-ubuntu-15-04
    https://wiki.debian.org/brcmfmac
    https://ubuntuforums.org/showthread.php?t=2354365
    https://askubuntu.com/questions/884291/ubuntu-14-04-wireless-not-working-on-macbook-pro-dual-boot
    https://www.mail-archive.com/linux-wireless@vger.kernel.org/msg17229.html
    https://www.mail-archive.com/search?l=ubuntu-bugs@lists.ubuntu.com&q=subject:%22%5C%5BBug+1693521%5C%5D+Re%5C%3A+brcmfmac%5C%3A+Direct+firmware+load+failed%22&o=newest
    https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1772624
    https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/brcm/

I created empty files at `/lib/firmware/{brcmfmac43602-pcie.Apple\ Inc.-MacBookPro14\,2.txt,brcmfmac43602-pcie.txt}`

```
$ dmesg | grep brcm
[    5.305998] usbcore: registered new interface driver brcmfmac
[    5.433599] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43602-pcie for chip BCM43602/2
[    5.435140] brcmfmac 0000:02:00.0: loading /lib/firmware/brcm/brcmfmac43602-pcie.Apple Inc.-MacBookPro14,2.txt failed with error -22
[    5.435142] brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.Apple Inc.-MacBookPro14,2.txt failed with error -22
[    5.435358] brcmfmac 0000:02:00.0: loading /lib/firmware/brcm/brcmfmac43602-pcie.txt failed with error -22
[    5.435359] brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -22
[    5.781881] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43602-pcie for chip BCM43602/2
[    5.781910] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[    5.782927] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43602/2 wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c
[    5.828561] brcmfmac 0000:02:00.0 wlp2s0: renamed from wlan0
```

What I think may need to happen is to have a particular configuration added like https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/brcm/brcmfmac43430-sdio.raspberrypi,3-model-b.txt as `brcmfmac43602-pcie.txt` in order to make the full range of channels available, and by that improve signal strength, but this is only a shot in the dark.
---

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[unconfirmed bug] missing firmware configuration `brcm/brcmfmac43602-pcie.txt`

[Josh Marshall]

Hello,

First time contacting a kernel mailing list.

I've been trying to fix the wireless on my laptop ( MacBookPro12,1 ).  
It has very weak signal strength.  I have at least partially read 
through the following:

https://askubuntu.com/questions/775011/macbook-pro-16-04-wifi-driver-installed-but-not-available
https://askubuntu.com/questions/1064442/wifi-not-working-with-bcm43602-on-ubuntu-18-04
https://askubuntu.com/questions/622988/wifi-issues-with-macbook-pro-retina-early-2015-12-2-on-ubuntu-15-04
     https://wiki.debian.org/brcmfmac
     https://ubuntuforums.org/showthread.php?t=2354365
https://askubuntu.com/questions/884291/ubuntu-14-04-wireless-not-working-on-macbook-pro-dual-boot
https://www.mail-archive.com/linux-wireless@vger.kernel.org/msg17229.html
https://www.mail-archive.com/search?l=ubuntu-bugs@lists.ubuntu.com&q=subject:%22%5C%5BBug+1693521%5C%5D+Re%5C%3A+brcmfmac%5C%3A+Direct+firmware+load+failed%22&o=newest
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1772624
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/brcm/

I created empty files at `/lib/firmware/{brcmfmac43602-pcie.Apple\ 
Inc.-MacBookPro14\,2.txt,brcmfmac43602-pcie.txt}`

```
$ dmesg | grep brcm
[    5.305998] usbcore: registered new interface driver brcmfmac
[    5.433599] brcmfmac: brcmf_fw_alloc_request: using 
brcm/brcmfmac43602-pcie for chip BCM43602/2
[    5.435140] brcmfmac 0000:02:00.0: loading 
/lib/firmware/brcm/brcmfmac43602-pcie.Apple Inc.-MacBookPro14,2.txt 
failed with error -22
[    5.435142] brcmfmac 0000:02:00.0: Direct firmware load for 
brcm/brcmfmac43602-pcie.Apple Inc.-MacBookPro14,2.txt failed with error -22
[    5.435358] brcmfmac 0000:02:00.0: loading 
/lib/firmware/brcm/brcmfmac43602-pcie.txt failed with error -22
[    5.435359] brcmfmac 0000:02:00.0: Direct firmware load for 
brcm/brcmfmac43602-pcie.txt failed with error -22
[    5.781881] brcmfmac: brcmf_fw_alloc_request: using 
brcm/brcmfmac43602-pcie for chip BCM43602/2
[    5.781910] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available 
(err=-2), device may have limited channels available
[    5.782927] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43602/2 
wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c
[    5.828561] brcmfmac 0000:02:00.0 wlp2s0: renamed from wlan0
```

What I think may need to happen is to have a particular configuration 
added like 
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/brcm/brcmfmac43430-sdio.raspberrypi,3-model-b.txt 
as `brcmfmac43602-pcie.txt` in order to make the full range of channels 
available, and by that improve signal strength, but this is only a shot 
in the dark.
---

The information in this email, including attachments, may be confidential and is intended solely for the addressee(s). If you believe you received this email by mistake, please notify the sender by return email as soon as possible.