Doubt about wifi driver in FreeBSD

Hi.

I don't have a wireless card neither laptops, but three things:
  1. Thinkpads are the preferred laptops of the FreeBSD developers/users, and so they are usually very well supported;
  2. you can take a look on the Hardware Notes and see if your particular wireless card model is in there;
  3. you can always use another wireless card, like a cheap USB card.
However, if that is an 802.11ac card, the FreeBSD general support for that standard is still primitive ( but it is evolving ), and IIRC just a few Intel cards do work ( not very well ).

Also, probably some folk with a similar hardware should popup later. :)
 
Thanks ,
I'll try to compile this when my laptop comes back from maintenance, one last question:

In virtualbox, freebsd does not have the kernel configuration file in the / usr / src / sys folder, the sys folder does not exist.

Is it because I'm in a virtual environment? or is the kernel configuration file in another directory?
 
You don't need to build a custom kernel for this. A number of wireless cards, including ath(4), are already built into the GENERIC kernel. All other wireless card drivers can be easily loaded as modules.

Code: 
# Wireless NIC cards
device          wlan                    # 802.11 support
options         IEEE80211_DEBUG         # enable debug msgs
options         IEEE80211_AMPDU_AGE     # age frames in AMPDU reorder q's
options         IEEE80211_SUPPORT_MESH  # enable 802.11s draft support
device          wlan_wep                # 802.11 WEP support
device          wlan_ccmp               # 802.11 CCMP support
device          wlan_tkip               # 802.11 TKIP support
device          wlan_amrr               # AMRR transmit rate control algorithm
device          an                      # Aironet 4500/4800 802.11 wireless NICs.
device          ath                     # Atheros NICs
device          ath_pci                 # Atheros pci/cardbus glue
device          ath_hal                 # pci/cardbus chip support
options         AH_SUPPORT_AR5416       # enable AR5416 tx/rx descriptors
options         AH_AR5416_INTERRUPT_MITIGATION # AR5416 interrupt mitigation
options         ATH_ENABLE_11N          # Enable 802.11n support for AR5416 and later
device          ath_rate_sample         # SampleRate tx rate control for ath
#device         bwi                     # Broadcom BCM430x/BCM431x wireless NICs.
#device         bwn                     # Broadcom BCM43xx wireless NICs.
device          ipw                     # Intel 2100 wireless NICs.
device          iwi                     # Intel 2200BG/2225BG/2915ABG wireless NICs.
device          iwn                     # Intel 4965/1000/5000/6000 wireless NICs.
device          malo                    # Marvell Libertas wireless NICs.
device          mwl                     # Marvell 88W8363 802.11n wireless NICs.
device          ral                     # Ralink Technology RT2500 wireless NICs.
device          wi                      # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
device          wpi                     # Intel 3945ABG wireless NICs.

Note that in VirtualBox you do not have a wireless card. The network interface is virtualized and will show up as a regular ethernet card.
 
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