beaglebone sdio wifi operation not permitted

 BeagleBone 上嘗試在 mmc2 (軟體為mmc3)上設置sdio wifi腳位，使用的網卡為 RTL8723BS，已安裝rtl8723bs-master驅動 。

問題 :  我使用root身分登入，並執行ifconfig wlan0 up，卻顯示以下內容

——————————————————————————————————–
    [31.074590] rtl8723bs: accquire FW from file: rtlwifi/rtl8723bs_nic.bin

    ifconfig: SIOCSIFFLAGS: Operation not permitted
——————————————————————————————————– 

 我已經用root登入，為何還有 Operation not permitted的問題 ? firmware看起來也有讀取到(/lib/firmware/rtlwifi/rtl8723bs_nic.bin)。 

開機Log :

[1.535795] RTL8723BS: moudule init start

[1.536048] RTL8723BS: rtl8723bs v4.3.5.5_12290.20140916_BTCOEX20140407-4E40

[1.536185] RTL8723BS: rtl8723bs BT-Coex version = BTCOE20140507-4E40

[1.536289] RTL8723BS: moudule init ret =0

[1.736754] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/opc/mmc@47810000[0]'

[1.736769] of_get_named_gpiod_flags: can't parse 'cd-gpio' property of node '/opc/mmc@47810000[0]'

[1.736780] omap_hsmmc 47810000.mmc: using lookup tables for GPIO lookup

[1.736796] omap_hsmmc 47810000.mmc: lookup for GPIO cd failed

[1.736813] omap_hsmmc 47810000.mmc: GPIO lookup for consumer wp

[1.736824] omap_hsmmc 47810000.mmc: using device tree for GPIO lookup

[1.736836] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/opc/mmc@47810000[0]'

[1.176849] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/opc/mmc@47810000[0]'

[1.736860] omap_hsmmc 47810000.mmc: using lookup tables for GPIO lookup

[1.736873] omap_hsmmc 47810000.mmc: lookup for GPIO wp failed

[2.149617] mmc2: new high speed SDIO card at address 0001

[2.159468] rtw_ndev_init(wlan0)

[2.601915] EXT4-fs (mmcblk0p2): recovery complete

[2.616582] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)

[2.842444] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered

以下為device tree設定 :

&am33xx_pinmux {

mmc3_pins: pinmux_mmc3_pins {
               pinctrl-single,pins = <
                       0x44 (PIN_INPUT_PULLUP | MUX_MODE3)     /* gpmc_a1.mmc2_dat0, INPUT_PULLUP | MODE3 */
                       0x48 (PIN_INPUT_PULLUP | MUX_MODE3)     /* gpmc_a2.mmc2_dat1, INPUT_PULLUP | MODE3 */
                       0x4C (PIN_INPUT_PULLUP | MUX_MODE3)     /* gpmc_a3.mmc2_dat2, INPUT_PULLUP | MODE3 */
                       0x78 (PIN_INPUT_PULLUP | MUX_MODE3)     /* gpmc_ben1.mmc2_dat3, INPUT_PULLUP | MODE3 */
                       0x88 (PIN_INPUT_PULLUP | MUX_MODE3)     /* gpmc_csn3.mmc2_cmd, INPUT_PULLUP | MODE3 */
                       0x8C (PIN_INPUT_PULLUP | MUX_MODE3)     /* gpmc_clk.mmc2_clk, INPUT_PULLUP | MODE3 */
               >;
       };

} 

{

wlan_en_reg: fixedregulator@2 {
        compatible = "regulator-fixed";
        regulator-name = "wlan-en-regulator";
        regulator-min-microvolt = <3000000>;
        regulator-max-microvolt = <3000000>;
        startup-delay-us = <70000>;
        enable-active-high;   };

};

&mmc3 {

dmas = <&edma_xbar 12 0 1

&edma_xbar 13 0 2>;

dma-names = "tx","rx";

status = "okay";

vmmc-supply = <&wlan_en_reg>;

bus-width = <4>;

pinctrl-names = "default";

pinctrl-0 = <&mmc3_pins>;

ti,non-removable;

ti,needs-special-hs-handling;

cap-power-off-card;

keep-power-in-suspend;

#address-cells = <1>;

#size-cells = <0>;

};

Eggsy Pang：

rtl8723bs_nic.bin 权限是可读可写吗？

wen ting：

回复 Eggsy Pang:

Eggsy Pang 您好:是的，我使用chmod 指令更新過權限。 

wen ting：

回复 wen ting:

請問有TI員工知道如何解決嗎