I use D-Link Corp. DWA-121 802.11n Wireless N 150 on beaglebone black RevC.
For USB hotplug purpose, I update my kernel to EXPERIMENTAL 4.2.0-rc4-bone2
and TESTING 4.1.0-rc8-bone9.
However, I found that on newer version compared to STABLE 3.8.13-bone73 ,
ping packet loss rate is higher.
some packets response ""Destination Host Unreachable"
Anyone having idea or have similar problems?
Newer kernel seems use different drivers and firmware for RealTek Wifi
dongle
*root@beaglebone:~# lsmod*
*Module Size Used by*
*ccm 6428 2*
*snd_usb_audio 126178 0*
*snd_hwdep 5214 1 snd_usb_audio*
*snd_usbmidi_lib 18550 1 snd_usb_audio*
*snd_seq_midi 5191 0*
*snd_seq_midi_event 5886 1 snd_seq_midi*
*snd_rawmidi 18468 2 snd_usbmidi_lib,snd_seq_midi*
*snd_pcm 75793 1 snd_usb_audio*
*snd_seq 46830 2 snd_seq_midi_event,snd_seq_midi*
*snd_seq_device 4677 3 snd_seq,snd_rawmidi,snd_seq_midi*
*snd_timer 16631 2 snd_pcm,snd_seq*
*evdev 8213 1*
*snd 57253 8
snd_usb_audio,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_usbmidi_lib,snd_seq_device*
*uvcvideo 61665 0*
*videobuf2_vmalloc 5145 1 uvcvideo*
*videobuf2_memops 2708 1 videobuf2_vmalloc*
*videobuf2_core 34201 1 uvcvideo*
*soundcore 6742 1 snd*
*arc4 1966 2*
*rtl8192cu 53656 0*
*rtl_usb 8276 1 rtl8192cu*
*rtl8192c_common 38645 1 rtl8192cu*
*rtlwifi 53884 3 rtl_usb,rtl8192c_common,rtl8192cu*
*mac80211 473394 3 rtl_usb,rtlwifi,rtl8192cu*
*cfg80211 385338 2 mac80211,rtlwifi*
*pvrsrvkm 148041 0*
*omap_aes 12439 0*
*omap_sham 20563 0*
*usb_f_acm 6828 1*
*u_serial 9602 3 usb_f_acm*
*usb_f_ecm 9066 1*
*g_multi 5942 0*
*usb_f_mass_storage 40238 2 g_multi*
*usb_f_rndis 20474 2 g_multi*
*u_ether 10985 3 usb_f_ecm,usb_f_rndis,g_multi*
*libcomposite 43358 5
usb_f_acm,usb_f_ecm,usb_f_rndis,g_multi,usb_f_mass_storage*
*tda998x 11577 0*
*tilcdc 24624 0*
*omap_rng 4264 0*
*drm_kms_helper 103830 4 tda998x,tilcdc*
*rng_core 7113 1 omap_rng*
*uio_pdrv_genirq 3321 0*
*uio 8146 1 uio_pdrv_genirq*
*leds_gpio 3186 0*
stable Kernel
*root@beaglebone:~# lsmod*
*Module Size Used by*
*uvcvideo 57013 0*
*snd_usb_audio 100405 0*
*videobuf2_vmalloc 2490 1 uvcvideo*
*snd_hwdep 4885 1 snd_usb_audio*
*snd_usbmidi_lib 15375 1 snd_usb_audio*
*8192cu 449033 0*
*g_multi 50407 2*
*libcomposite 15028 1 g_multi*
*omap_rng 4062 0*
*mt7601Usta 458758 0*
regards,
Ivan
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