Hi Victor, [...] > Yes you are right and as I understand gpio_request will give a 0 if it > success and because of that the warning never will appear, if there is > a problem there will be a -1 and the warning will be printed. I could > fix this with a return that breaks the code like this > > ret = gpio_request(DA850_HAWK_MMCSD_CD_PIN, "MMC CD\n"); > if (ret) { > pr_warning("%s: can not open GPIO %d\n", > __func__, DA850_HAWK_MMCSD_CD_PIN); > return; > } > gpio_direction_input(DA850_HAWK_MMCSD_CD_PIN); I think gpio_request_one() is simpler. This requests the gpio and sets it up: ret = gpio_request_one(DA850_HAWK_MMCSD_CD_PIN, GPIOF_DIR_IN, "MMC CD"); if (ret < 0) { ... failed ... } Regards Cyril. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel