Hi.. I found the MMC_CAP_BUS_WIDTH_TEST... In mailing, I read the related patches.. but i didn't fully understand... /* * If controller can't handle bus width test, * compare ext_csd previously read in 1 bit mode * against ext_csd at new bus width */ if (!(host->caps & MMC_CAP_BUS_WIDTH_TEST)) err = mmc_compare_ext_csds(card, ext_csd, bus_width); else err = mmc_bus_test(card, bus_width); if (!err) break; And i tested suspend/resume..it's failed.. If i didn't set MMC_CAP_BUS_WIDTH_TEST, always return -EINVAL.. (using SDHCI controller, card is eMMC4.41) Didn't compare ext_csd's value.. So i want to know how use MMC_CAP_BUS_WIDTH_TEST.. Thanks, Jaehoon Chung -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
