1 Reply Latest reply on Jun 11, 2019 11:36 PM by VinayakS_26

    Cypress 4373 chip usb_submit_urb failed -19

    ajkuc_4291901

      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

        • 1. Re: Cypress 4373 chip usb_submit_urb failed -19
          VinayakS_26

          Hi,

           

          Could you post the .config file that you used while building the kernel. Did you enable the following flag in the .config file.

          CONFIG_BRCMFMAC_USB=y.

          Also please post the dmesg log of the error that you are getting.

          Please insmod the brcmfmac.ko with the log level 0x00002000

          >> insmod brcmfmac.ko debug=0x00002000;

           

          Regards,

          VInayak

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