I'm copying Gabor so that he might help us. Chirag, I'm trying to read the status of the GPIOs by using the /sys/class/gpio/export
root@OpenWrt:/# echo 15 > /sys/class/gpio/export ash: write error: Device or resource busy This doesn’t work, as the system complains that resource is busy. I do have confirmation from another tester that the patch has now enabled the 5GHz radio on his N750 ( Check comment 25 & 26 on the following page: https://www.crc.id.au/2014/01/10/wd-mynet-n600-n750-openwrt-update/ ) Luis On Thu, Feb 6, 2014 at 4:59 PM, Luis E. Garcia <l...@bitamins.net> wrote: > Chirag, > Can you test the reception on the radios with the patch at r39213. > Also can you check the behavior of LuCI with revision on the r394xx range. > > I get better reception on the 5GHz radio and a resposive > LuCI [Configuration of radios WLan0 & WLan1] with the changes made on patch > r39213. > Builds with revisons r39217 or later introduce lag on LuCI [Configuration > of radios WLan0 & WLan1] and the radio reception on the 5GHz is much lower > in my tests. > > If you can point me in the right direction to check the state of the GPIOs > from the console on the router I can test the images and see the status, > and post back the results. > > Luis > > > > On Thu, Feb 6, 2014 at 4:46 PM, Chirag Chhatriwala <cchha...@gmail.com>wrote: > >> Very strange. I don't have the problem of the router being deaf anymore. >> However further investigation into the code leads me to believe that the >> value is never set to GPIOF_INIT_HIGH. Which is confusing. Or am I not >> seeing the obvious? >> >> ath79_wmac_set_ext_lna_gpio >> >> calls >> >> ar934x_set_ext_lna_gpio >> >> calls >> >> gpio_request_one and sets to GPIOF_DIR_OUT | GPIOF_INIT_LOW for the >> particular LNA GPIO. I reckon we need this to be GPIOF_INIT_HIGH in >> order for this to be in line with Felix's original patch. >> >> What bothers me is that if this patch isn't working, how is my device >> able to hear other devices just fine. >> >> I also agree with Felix, that value being passed in >> ath79_wmac_set_ext_lna_gpio >> as 0 or 1 is simply cosmetic, to produce an output of LNA0 or LNA1. It IS >> then later used to select AR934X_GPIO_OUT_EXT_LNA0 >> or AR934X_GPIO_OUT_EXT_LNA1 based on the provided value. >> >> I got lost in the ath79_gpio_output_select (maybe this is where the magic >> happens?) >> >> Best Regards, >> Chirag >> >> PS I own 2 N750s and they run in WDS AP and WDS AP+CLIENT mode and the >> devices see each other just fine. >> >> On Thu, Feb 6, 2014 at 5:37 PM, Luis E. Garcia <l...@bitamins.net> wrote: >> >>> >>> Images found here: >>> http://openwrt.crc.id.au/ >>> >>> >>> Steve >>> The code you first sent was merged with revision 39213 for the N750. >>> If I use your image with this patch ( the one marked ) r39211 - I can >>> get connected with both radios. LuCI responds in a timely fashion. >>> There is no lag when applying changes. >>> >>> They "cleaned up" the code in revision r39217, I couldn't find the >>> definition for the function they're using "ath79_wmac_set_ext_lna_gpio" >>> But all builds after that have issues with the radios, poor performance >>> on the 5GHz radios - LuCI lags on the page that setups the WiFi radios. >>> >>> With the image you have as r39499 with the patch - the router behaves as >>> with the r39213 with patch image. ( the first fix you sent ) >>> >>> I wanted to verify the state of the GPIOs on the kernel under the >>> running linux system - that is why I asked if there was a way to verify the >>> State of the GPIOs in your blog. >>> >>> Luis Garcia >>> >>> >>> _______________________________________________ >>> openwrt-devel mailing list >>> openwrt-devel@lists.openwrt.org >>> https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel >>> >>> >> >> _______________________________________________ >> openwrt-devel mailing list >> openwrt-devel@lists.openwrt.org >> https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel >> >> >
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