Have you checked if you have the following firmware files: /lib/firmware/rtlwifi/rtl8192cufw.bin /lib/firmware/rtlwifi/rtl8192cufw_A.bin /lib/firmware/rtlwifi/rtl8192cufw_B.bin /lib/firmware/rtlwifi/rtl8192cufw_TMSC.bin
It is also possible to modify the driver to bypass firmware loading for that chipset and it will work just fine. (I have done it before) On Fri, Mar 6, 2015 at 11:39 PM, <dungnb.fe...@gmail.com> wrote: > Dear > I'm using buildroot to build a custom root file system for BeagleBone. My > application uses a wifi dongle (Realtek 8192 chipset). I rebuilt kernel > image (ver 3.2.0) and the image and wifi dongle work well with Debian root > file system. My problem is : the built buildroot root file system get > firmware error when modprobe rtl8192cu: > > # modprobe rtl8192cu > [ 194.077442] cfg80211: Calling CRDA to update world regulatory domain > Feb 15 08:01:23 beaglebone kern.info kernel: [ 194.077442] cfg80211: > Calling CRDA to update world regulatory domain > [ 194.171603] rtl8192cu: MAC address: 00:0f:13:59:0f:e1 > [ 194.176981] rtl8192cu: Board Type 0 > Feb 15 08:01:23 beaglebone kern.info kernel: [ 194.171603] rtl8192cu: > MAC address: 00:0f:13:59:0f:e1 > Feb 15 08:01:23 beaglebone kern.info kernel: [ 194.176981] rtl8192cu: > Board Type 0 > [ 255.203972] usbcore: registered new interface driver rtl8192cu > # Feb 15 08:02:24 beaglebone kern.debug kernel: [ 255.203643] > rtl8192cu:rtl92cu_init_sw_vars():<0-0> Failed to request firmware! > Feb 15 08:02:24 beaglebone kern.debug kernel: [ 255.203668] > rtlwifi:rtl_usb_probe():<0-0> Can't init_sw_vars. > Feb 15 08:02:24 beaglebone kern.info kernel: [ 255.203972] usbcore: > registered new interface driver rtl8192cu > > > I also chose the option: Target packages -> Hardware handling -> Frimware > -> wifi firmware: > [ ] Marvell Wifi-Ex SD 8787 > [ ] Ralink rt2501/rt61 > [ ] Ralink rt73 > [ ] Ralink rt27xx/rt28xx/rt30xx > [*] Realtek 81xx > [*] Realtek 87xx > [*] Realtek 88xx > [*] TI wl127x > [*] TI wl128x > [ ] TI wl18xx > But it can not change the error > Please help me > Thank you > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
