On Sun, 23 Dec 2007 23:25:26 -0800
"raki john" <raki4652@gmail.com> wrote:

quoted text
>=20
> Does  mmc_requeest->stop is equal  to mmc_request->data->stop ?
>=20
> Does  mmc_request   is equal  to mmc_request->data->mrq ?
>=20
> Does mmc_request->data   is equal  to   mmc_request->cmd->data ?
>=20
> Does mmc_request   is equal  to mmc_request->cmd->mrq  ?
>=20

Yes on all accounts. I don't know the reason for this extreme redundancy. I=
t was there long before I got involved.

quoted text
>=20
> I think Stop command which is part of mmc_request is used for sending stop
> command after Multi Block write. is this correct. If stop command fails(C=
RC
quoted text
> fail, timeout), does this mean card  write failed.
>=20

It is correct that it is used for multi block writes. But also other open e=
nded transfers.

If the stop command fails, then the card will be in an unknown state. The w=
rite should have been completed though.

Rgds
Pierre