Linus Lüssing <linus.luessing@xxxxxxxxx> wrote: > Sometimes, in yet unknown cases the wifi chip stops working. To allow a > watchdog in userspace to easily and quickly reset the wifi chip, add the > according functionality to userspace. A reset can then be triggered > via: > > $ echo 1 > /sys/kernel/debug/ieee80211/phy0/ath9k/reset > > The number of user resets can further be tracked in the row "User reset" > in the same file. > > So far people usually used "iw scan" to fix ath9k chip hangs from > userspace. Which triggers the ath9k_queue_reset(), too. The reset file > however has the advantage of less overhead, which makes debugging bugs > within ath9k_queue_reset() easier. > > Signed-off-by: Linus Lüssing <ll@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> 2 patches applied to ath-next branch of ath.git, thanks. 053f9852b95e ath9k: add option to reset the wifi chip via debugfs 4925642d5412 ath9k: Fix potential interrupt storm on queue reset -- https://patchwork.kernel.org/project/linux-wireless/patch/20210914192515.9273-2-linus.luessing@xxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
