Tested-by: Rossler, Jakob (Nokia - DE/Ulm) <jakob.rossler@xxxxxxxxx> Best regards Jakob -----Original Message----- From: Avri Altman <Avri.Altman@xxxxxxx> Sent: Monday, April 11, 2022 12:05 PM To: Bean Huo <huobean@xxxxxxxxx>; ulf.hansson@xxxxxxxxxx; adrian.hunter@xxxxxxxxx Cc: linux-mmc@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Rossler, Jakob (Nokia - DE/Ulm) <jakob.rossler@xxxxxxxxx>; sperson@xxxxxxxxxx; Bean Huo <beanhuo@xxxxxxxxxx> Subject: RE: [PATCH v1] mmc-utils: Add General command CMD56 read support > On Sat, 2022-04-09 at 09:03 +0000, Avri Altman wrote: > > > + memset(&idata, 0, sizeof(idata)); > > > + idata.write_flag = 0; > > > + idata.opcode = MMC_GEN_CMD; > > > + idata.arg = arg; > > Practically arg is not needed, because bits[1..31] are meaningless. > > Maybe just set: idata.arg = 1; > > > > Thanks, > > Avri > Thanks for your review. > > you are right arg is not needed according to eMMC spec. But as I > mentioned in the commit message, for the universal use. we need it for > the vendor- specific arg. I will change it that its arg will be 1 by > default if the user doesn't specific arg. Ack. Thanks, Avri > > Kind regards, > Bean > >