Wi-Fi Bluetooth for Linux Forum Discussions

Hello,

I recently moved from using Linux Kernel 4.14 to 4.19, but I'm not able to use the 89359 WiFi driver anymore since it is only compatible with 4.14. Is there a version of the driver that is compatible with 4.19, or is there a plan to release one?

Any input is much appreciated, thanks!

Hi,

We have our custom boards with Linux 3.14 that use Murata SN8000(CYW43362) and 1DX (CYW4343W) Wi-Fi module. We are in the middle to upgrade our drivers with the 2019-05-08 Cypress FMAC packages.

The readme file in the package states the following are the supported features.

Supported Features

-----------------

* Concurrent APSTA

* P2P

* Out-of-band (OOB) interrupt

* CLM download (43455/4343w/4354/4356/43012/89342/89359/4373)

* Wake on Wireless LAN

* Voice enterprise (43455)

* PMF

* WPA3 (43455)

* RSDB (89342/89359)

* Thermal throttling (4343w)

* Fast roaming (89342)

Is PMF (802.11w) feature supported by both CYW43362 and CYW4343W? So far I cannot get our CYW43362 device to connect to PMF enabled AP.

Is Fast roaming (802.11r) only supported by 89342? Not for CYW43362 and CYW4343W?

Thanks,

Hi,

We need to certife our device which has a bcm4354 and other transmitters.

Because our module with bcm4354 has a module certification we need to do Co-location tests as part of the FCC certification.

I saw in the forums that cypress has provided the necessary wl tool for arm64.

Can you please provide the firmware for it too? Is it necessary to do continuous transmittion?

We only require to be able to select channel,  modulation / data rate and do continuous transmission.

Thanks!

We have a custom iMX6DL board with Linux 3.14 using Murata sn8000 module. This board is working fine, but we need to upgrade to the latest Cypress Linux driver because of all the security patches and enhancements.

The compiled FMAC kernel module is working fine in general. However, I notice the new driver cannot release the SDIO interface when the sn8000 module is turned off by the onboard PMIC. With the old driver, I have the following message.

mmc2: card 0001 removed

But not with the new driver. Because the new driver does not release / turn-off  the sdio interface. The driver cannot recognize the sn8000 module when I try to turn on the module again with the PMIC.

It seems like the Wi-Fi module detection algorithm is modified in the new driver. I have spent sometime to investigate in the device tree and the FMAC, mmc/sdio driver code. But cannot fully understand how it works. Can someone help me understand the mechanism and point me to the direction that can allow the driver to detect the power off of the module.

Help is much appreciated.

JC

Hi Team,

We are using Cypress 4373 wireless chip on a hardware with usb interface, after compiling the drivers we get compat.ko, cfg80211.ko,brcmutil.ko and brcmfmac.ko modules. After inserting the modules in sequence (compat.ko, cfg80211.ko,brcmutil.ko and brcmfmac.ko) we get error "brcmf_usb_dl_cmd: usb_submit_urb failed -19" after brcmfmac.ko is inserted.

Please let us know how do we resolve the issue.

Thanks

Ajit

We have use brcmfmac on TI and NXP platform with CY wifi chip.

It seems that the SDIO hardware is different between NXP and TI because it is needed to set "sd_sgentry_align = <512>" in dts node to let brcmfmac runs on IT's SOC.

My understand is TI's SDIO hardware can not handle variable length data block but NXP can.

The question is that I can not find the same parameter sd_sgentry_align in bcmdhd driver source code.

Is there a same parameter in bcmdhd code?

And If some one has the experience on porting bcmdhd to TI's SOC？

Hello,

I am trying to cross-compile according to the README of FMAC Driver [2019-05-08].

Cypress Linux WiFi Driver Release (FMAC) [2019-05-08]

README

#### Build the kernel image

```bash

#1. Have the BSP kernel source available

   git clone https://source.codeaurora.org/external/imx/linux-imx

   cd linux-imx

   git checkout imx_4.9.88_2.0.0_ga

#2. Set up build environment and kernel configuration

   source /opt/poky/1.8/environment-setup-cortexa7hf-vfp-neon-poky-linux-gnueabi

:

:

#######

How can I do the following in step 2?

source /opt/poky/1.8/environment-setup-cortexa7hf-vfp-neon-poky-linux-gnueabi

I think you need to download from Yocto, please tell me about the download procedure and installation method.

Best regards,

Kenji Takahashi

Hi experts，

    We are using Linux BSA_Server to implement BT Sink function. Application layer uses UIPC_Open(tUIPC_RVC_CBACK) to receive AVK PCM/AAC data from BSA_Server.

    The question is: what AVK audio receiving timeout should we set?  It also means how big of intermediate buffer should we use before sending the audio data to audio ALSA interface. We notice the receiving of most of the audio package is timely and stable. But some packages may arrive application layer with a significant delay, some one may be lost. We guess it may be due to interference and audio package re-transmission. 

    We want to make sure that all the audio packages arriving device end before Bluetooth A2DP timeout can be played out normally.

     What's the application layer audio receiving timeout should we set?

   Thanks very much for your time!

Jevon