From: Zefir Kurtisi Date: Fri, 22 Mar 2013 11:58:23 +0000 (+0100) Subject: ath9k: trivial: change spectral relayfs buffering X-Git-Tag: submit/tizen_common/20140905.094502~2896^2~21^2^2~219 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=55f39e67399d3d4cf0c9b2833da797afeafd537b;p=sdk%2Femulator%2Femulator-kernel.git ath9k: trivial: change spectral relayfs buffering The spectral data provided via relay-fs introduces a buffering latency given by the subbuf_size. To meet the requirements for delay-sensitive applications (like real-time spectral plotter), reduce subbuf_size and increase n_subbufs. Signed-off-by: Zefir Kurtisi Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 67a2a4b3b883..e6307b86363a 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -2072,7 +2072,7 @@ int ath9k_init_debug(struct ath_hw *ah) &fops_modal_eeprom); sc->rfs_chan_spec_scan = relay_open("spectral_scan", sc->debug.debugfs_phy, - 262144, 4, &rfs_spec_scan_cb, + 1024, 256, &rfs_spec_scan_cb, NULL); debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc,