Return-path: Received: from mail-qc0-f178.google.com ([209.85.216.178]:60845 "EHLO mail-qc0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754029Ab3KECvl (ORCPT ); Mon, 4 Nov 2013 21:51:41 -0500 Received: by mail-qc0-f178.google.com with SMTP id x19so4494534qcw.9 for ; Mon, 04 Nov 2013 18:51:41 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <52776C67.8080608@broadcom.com> References: <5273840F.40808@broadcom.com> <5273ABAC.1090109@broadcom.com> <52776C67.8080608@broadcom.com> Date: Tue, 5 Nov 2013 10:51:40 +0800 Message-ID: (sfid-20131105_035158_068261_402CF8ED) Subject: Re: brcmfmac driver does not work with a BCM4335 WiFi module From: Dong Aisheng To: Arend van Spriel Cc: linux-wireless@vger.kernel.org, frankyl@broadcom.com, brcm80211-dev-list@broadcom.com Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Nov 4, 2013 at 5:44 PM, Arend van Spriel wrote: > On 11/04/2013 09:13 AM, Dong Aisheng wrote: >> >> Hi Arend, >> >> On Mon, Nov 4, 2013 at 11:44 AM, Dong Aisheng wrote: >>> >>> Hi Arend, >>> >>> On Fri, Nov 1, 2013 at 9:25 PM, Arend van Spriel >>> wrote: >>>> >>>> On 11/01/2013 01:21 PM, Dong Aisheng wrote: >>>>> >>>>> >>>>> Hi Arend, >>>>> >>>>> On Fri, Nov 1, 2013 at 6:35 PM, Arend van Spriel >>>>> wrote: >>>>>> >>>>>> >>>>>> On 11/01/2013 07:22 AM, Dong Aisheng wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> Hi ALL, >>>>>>> >>>>>>> I'm verifying BCM4335 WiFi module on i.MX6SL EVK board. >>>>>>> The kernel i ran is latest from: >>>>>>> git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless.git >>>>>>> >>>>>>> The firmware is used is from: >>>>>>> >>>>>>> >>>>>>> git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git >>>>>>> >>>>>>> NVRAM file is got from the vendor which should work for the module. >>>>>>> >>>>>>> But i ran into the following issues, hope somebody can give me some >>>>>>> hints. >>>>>>> >>>>>>> First, i met error when module is auto loaded, but seems the driver >>>>>>> is >>>>>>> still loaded successfully since i found the new WiFi interface with >>>>>>> ifconfig. >>>>>>> But it can not work after run rfkill unblock wlan and a lot error >>>>>>> messages comes out. >>>>>>> >>>>>>> I'm wondering if this driver can support bcm4335 well, can anybody >>>>>>> provide some help? >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> I can try. I have used the bcm4335 with a SDIO3.0 controller on a x86 >>>>>> PC. >>>>>> Looking at an issue right now, but your log does not show that so you >>>>>> have a >>>>>> different issue. Could you load the module with parameter >>>>>> 'debug=0x146'. >>>>>> >>>>> >>>>> Thanks for the help. >>>>> So that means the brcmfmac driver should support bcm4335 module well, >>>>> right? >>>>> The difference is that i'm using a ARM platform. >>>>> Below is log with 'debug=0x146'. >>>>> It only includes driver probe log. >>>> >>>> >>>> >>>> That log actually looks fine. Just not sure why software rfkill was >>>> enabled. >>>> Is that still the case? What distro is running on your platform? >>>> >>> >>> Do you mean the error message during probe is also fine? >>> root@imx6slevk:~# mmc0: queuing unknown CIS tuple 0x91 (3 bytes) >>> mmc0: new high speed SDIO card at address 0001 >>> brcmfmac: brcmf_sdioh_request_word: Failed to read word, Err: 0xffffffac >>> brcmfmac: brcmf_sdioh_request_word: Failed to read word, Err: 0xffffffac >>> brcmfmac: brcmf_sdioh_request_word: Failed to read word, Err: 0xffffffac >>> brcmfmac: brcmf_sdio_regrw_helper: failed with -84 <--- error message >>> brcmfmac: brcmf_sdio_chip_ >>> drivestrengthinit: No SDIO Drive strength >>> init done for chip 4335 rev 1 pmurev 18 >>> brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Mar 24 2013 >>> 20:36:01 version 6.30.171.24.20 (B0 Station/P2P) >>> brcmfmac: brcmf_fil_cmd_data: Failed err=-23 <---- error >>> message >>> >>> I'm using yocto rootfs, seems rfkill is always enabled by default. >>> I could try another rootfs without rfkill. >>> But i don't think rfkill should block WiFi driver to work properly. >>> >> >> I tried another rootfs without rfkill, met the same issue when doing >> ifconfig wlan0 up, just like 'rfkill unblock wlan'. >> >> root@freescale ~$ mmc0: mmc_rescan_try_freq: trying to init card at 400000 >> Hz >> mmc0: queuing unknown CIS tuple 0x91 (3 bytes) >> mmc0: new high speed SDIO card at address 0001 >> brcmfmac: brcmf_sdioh_request_word: Failed to read word, Err: 0xffffffac >> brcmfmac: brcmf_sdioh_request_word: Failed to read word, Err: 0xffffffac >> brcmfmac: brcmf_sdioh_request_word: Failed to read word, Err: 0xffffffac >> brcmfmac: brcmf_sdio_regrw_helper: failed with -84 >> brcmfmac: brcmf_sdio_chip_drivestrengthinit: No SDIO Drive strength >> init done for chip 4335 rev 1 pmurev 18 >> brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Mar 24 2013 >> 20:36:01 version 6.30.171.24.20 (B0 Station/P2P) >> brcmfmac: brcmf_fil_cmd_data: Failed err=-23 >> >> root@freescale ~$ >> root@freescale ~$ >> root@freescale ~$ ifconfig -a >> ...... >> >> wlan0 Link encap:Ethernet HWaddr 00:90:4C:C5:12:38 >> BROADCAST MULTICAST MTU:1500 Metric:1 >> RX packets:0 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:1000 >> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) >> >> root@freescale ~$ ifconfig wlan0 up >> brcmfmac: brcmf_sdbrcm_bus_rxctl: resumed on timeout >> brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists >> brcmfmac: brcmf_add_if: ignore IF event >> brcmfmac: brcmf_fil_cmd_data: Failed err=-110 >> >> brcmfmac: brcmf_fil_cmd_data: Failed err=-23 >> root@freescale ~$ >> root@freescale ~$ >> root@freescale ~$ brcmfmac: brcmf_sdioh_request_byte: Failed to write >> byte F1:@0x1001f=01, Err: -110 >> brcmfmac: brcmf_sdioh_request_byte: Failed to read byte >> F1:@0x1001f=ff, Err: -110 >> brcmfmac: brcmf_sdioh_request_byte: Failed to read byte >> F1:@0x1001f=ff, Err: -110 >> >> root@freescale ~$ brcmfmac: brcmf_sdioh_request_byte: Failed to write >> byte F1:@0x1001f=01, Err: -110 >> brcmfmac: brcmf_sdioh_request_byte: Failed to read byte >> F1:@0x1001f=ff, Err: -110 >> brcmfmac: brcmf_sdioh_request_byte: Failed to read byte >> F1:@0x1001f=ff, Err: -110 >> brcmfmac: brcmf_sdioh_request_byte: Failed to write byte >> F1:@0x1001f=01, Err: -110 >> brcmfmac: brcmf_sdioh_request_byte: Failed to read byte >> F1:@0x1001f=ff, Err: -110 >> brcmfmac: brcmf_sdioh_request_byte: Failed to read byte >> F1:@0x1001f=ff, Err: -110 >> >> I looked into a bit more about the error and found there's CMD timeout >> on the bus during SDIO >> command transfer. >> --------------------------------------- >> brcmutil: RxHdr: >> 00000000: 20 00 df ff 19 00 00 0c 00 35 00 00 ........5.. >> brcmfmac: brcmf_sdbrcm_read_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> mmc0: starting CMD52 arg 92001400 flags 00000195 >> sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00010000 >> mmc0: req done (CMD52): -110: 00000000 00000000 00000000 00000000 >> brcmfmac: brcmf_sdioh_request_byte: Failed to write byte >> F1:@0x1000a=00, Err: -110 >> ------------------------------------------ >> I'm not sure how this happened, whether caused by host side or wifi driver >> side. >> But for the host, i tried this host driver with another WiFi >> card(Atheros AR6103) with same kernel, >> and it worked well. So the host driver seems more like ok to me. >> >> Since i'm not familar with the WiFi driver, i wonder if you could >> provide suggestion >> from WiFi driver layer to see what the issue could be. >> >> Below is the detailed log when run 'ifconfig wlan0 up' >> >> root@freescale ~$ ifconfig wlan0 up >> brcmfmac: brcmf_netdev_open Enter, idx=0 >> brcmfmac: brcmf_sdbrcm_bus_txctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmutil: TxHdr: >> 00000000: 2f 00 d0 ff 10 00 00 14 00 00 00 00 00 00 00 00 >> /............... >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_dpc Dongle reports CHIPACTIVE >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> >> brcmfmac: brcmf_sdbrcm_bus_rxctl: resumed on timeout >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdio_readframes Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_checkdied firmware not built with -assert >> brcmfmac: brcmf_fil_cmd_data: Failed err=-110 >> brcmutil: RxHdr: >> 00000000: 27 00 d8 ff 12 00 00 0c 00 26 00 00 '........&.. >> brcmfmac: brcmf_sdbrcm_read_control Enter >> brcmfmac: brcmf_sdbrcm_bus_txctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmutil: TxHdr: >> 00000000: 28 00 d7 ff 11 00 00 14 00 00 00 00 00 00 00 00 >> (............... >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmutil: RxHdr: >> 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 ............ >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_dpc Dongle reports CHIPACTIVE >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdio_readframes Enter >> brcmutil: RxHdr: >> 00000000: 20 00 df ff 13 00 00 0c 00 32 00 00 ........2.. >> brcmfmac: brcmf_sdbrcm_read_control Enter >> brcmfmac: brcmf_sdbrcm_bus_txctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmutil: TxHdr: >> 00000000: 28 00 d7 ff 12 00 00 14 00 00 00 00 00 00 00 00 >> (............... >> brcmutil: RxHdr: >> 00000000: 10 00 ef ff 14 83 0f 0c 00 32 00 00 .........2.. >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_fws_hdrpull enter: ifidx 0, skblen 88, sig 8 >> brcmfmac: brcmf_fws_hdrpull tlv type=TRANS_ID (18), len=6 (6) >> brcmfmac: brcmf_fws_hdrpull enter: ifidx 0, skblen 87, sig 8 >> brcmfmac: brcmf_fws_hdrpull tlv type=TRANS_ID (18), len=6 (6) >> brcmfmac: brcmf_fws_notify_credit_map enter: credits 09:27:12:09:09:02 >> brcmfmac: brcmf_add_if Enter, idx=0, ifidx=0 >> brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists >> brcmfmac: brcmf_add_if: ignore IF event >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmutil: RxHdr: >> 00000000: 20 00 df ff 17 00 00 0c 00 33 00 00 ........3.. >> brcmfmac: brcmf_sdbrcm_read_control Enter >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_txctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmutil: TxHdr: >> 00000000: 28 00 d7 ff 13 00 00 14 00 00 00 00 00 00 00 00 >> (............... >> brcmutil: RxHdr: >> 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 ............ >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdio_readframes Enter >> brcmutil: RxHdr: >> 00000000: 20 00 df ff 18 00 00 0c 00 34 00 00 ........4.. >> brcmfmac: brcmf_sdbrcm_read_control Enter >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_txctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmutil: TxHdr: >> 00000000: 28 00 d7 ff 14 00 00 14 00 00 00 00 00 00 00 00 >> (............... >> brcmutil: RxHdr: >> 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 ............ >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdio_readframes Enter >> brcmutil: RxHdr: >> 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 ............ >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdio_readframes Enter >> brcmutil: RxHdr: >> 00000000: 20 00 df ff 19 00 00 0c 00 35 00 00 ........5.. >> brcmfmac: brcmf_sdbrcm_read_control Enter >> brcmfmac: brcmf_sdbrcm_bus_txctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmutil: TxHdr: >> 00000000: 28 00 d7 ff 15 00 00 14 00 00 00 00 00 00 00 00 >> (............... >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmutil: RxHdr: >> 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 ............ >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdio_ib_irqhandler IB intr triggered >> brcmfmac: brcmf_sdbrcm_isr Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdio_readframes Enter >> brcmutil: RxHdr: >> 00000000: 20 00 df ff 1a 00 00 0c 00 36 00 00 ........6.. >> brcmfmac: brcmf_sdbrcm_read_control Enter >> brcmfmac: brcmf_config_dongle power save set to enabled >> brcmfmac: brcmf_dongle_roam Internal Roaming = On > > > It seem this is the last command being sent. Could you provide file contents > in /sys/kernel/debug/brcmfmac/mmc*/ > > Not sure if Yocto mounts debugfs on /sys/kernel/debug. Otherwise you can do: > > # mkdir /tmp/debugfs > # mount -t debugfs none /tmp/debugfs > Please see below: root@imx6slevk:/sys/kernel/debug/brcmfmac/mmc0:0001:1# ls counters forensics fws_stats root@imx6slevk:/sys/kernel/debug/brcmfmac/mmc0:0001:1# ls -l total 0 -r--r--r-- 1 root root 0 Sep 6 23:21 counters -r--r--r-- 1 root root 0 Sep 6 23:21 forensics -r--r--r-- 1 root root 0 Sep 6 23:21 fws_stats root@imx6slevk:/sys/kernel/debug/brcmfmac/mmc0:0001:1# cat counters intrcount: 19 lastintrs: 0 pollcnt: 0 regfails: 0 tx_sderrs: 0 fcqueued: 0 rxrtx: 0 rx_toolong: 0 rxc_errors: 0 rx_hdrfail: 0 rx_badhdr: 0 rx_badseq: 0 fc_rcvd: 0 fc_xoff: 0 fc_xon: 0 rxglomfail: 0 rxglomframes: 0 rxglompkts: 0 f2rxhdrs: 36 f2rxdata: 3 f2txdata: 0 f1regdata: 42 tickcnt: 53 tx_ctlerrs: 0 tx_ctlpkts: 17 rx_ctlerrs: 0 rx_ctlpkts: 17 rx_readahead: 0 root@imx6slevk:/sys/kernel/debug/brcmfmac/mmc0:0001:1# cat forensics RTE (USB-SDIO-CDC) 6.30.171.24.20 (B0 Station/P2P) on BCM4335 r1 @ 37.4/161.3/161.3MHz 000000.011 sdpcmdcdc0: Broadcom SDPCMD CDC driver 000000.018 reclaim section 0: Returned 42772 bytes to the heap 000000.061 wl0: Broadcom BCM4335 802.11 Wireless Controller 6.30.171.24.20 (B0 Station/P2P) 000000.070 reclaim section 1: Returned 62128 bytes to the heap 000000.209 wl0: wlc_enable_probe_req: state down, deferring setting of host flags root@imx6slevk:/sys/kernel/debug/brcmfmac/mmc0:0001:1# ring setting of host flags root@imx6slevk:/sys/kernel/debug/brcmfmac/mmc0:0001:1# cat fws_stats header_pulls: 0 header_only_pkt: 0 tlv_parse_failed: 0 tlv_invalid_type: 0 mac_update_fails: 0 ps_update_fails: 0 if_update_fails: 0 pkt2bus: 0 generic_error: 0 rollback_success: 0 rollback_failed: 0 delayq_full: 0 supprq_full: 0 txs_indicate: 0 txs_discard: 0 txs_suppr_core: 0 txs_suppr_ps: 0 txs_tossed: 0 txs_host_tossed: 0 bus_flow_block: 0 fws_flow_block: 0 send_pkts: BK:0 BE:0 VO:0 VI:0 BCMC:0 requested_sent: BK:0 BE:0 VO:0 VI:0 BCMC:0 root@imx6slevk:/sys/kernel/debug/brcmfmac/mmc0:0001:1# Regards Dong Aisheng > Regards, > Arend > > >> brcmfmac: brcmf_sdbrcm_bus_txctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmutil: RxHdr: >> 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 ............ >> brcmfmac: brcmf_sdbrcm_dpc Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmutil: TxHdr: >> 00000000: 31 00 ce ff 16 00 00 14 00 00 00 00 00 00 00 00 >> 1............... >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_kso_control Enter >> brcmfmac: brcmf_sdbrcm_bus_rxctl Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter >> brcmfmac: brcmf_sdbrcm_bus_sleep Enter <-- the driver loops >> here by running this function >> ................. >> >> >> Regards >> Dong Aisheng >> > >