Messages in this thread | | | Subject | Re: [PATCH V12 2/2] scsi: ufs: Add configfs support for UFS provisioning | From | Adrian Hunter <> | Date | Fri, 31 Aug 2018 10:12:44 +0300 |
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On 30/08/18 13:46, Sayali Lokhande wrote: > This patch adds configfs support to provision UFS device at > runtime. This feature can be primarily useful in factory or > assembly line as some devices may be required to be configured > multiple times during initial system development phase. > Configuration Descriptors can be written multiple times until > bConfigDescrLock attribute is zero. > > Configuration descriptor buffer consists of Device and Unit > descriptor configurable parameters which are parsed from vendor > specific provisioning file and then passed via configfs node at > runtime to provision ufs device. > CONFIG_CONFIGFS_FS and CONFIG_UFS_PROVISION needs to be enabled > for using this feature. > > Usage: > 1) To read current configuration descriptor with index X > (where index X can be 0/1/2/3) : > cat /config/XXXX.ufshc/ufs_config_desc_X > > 2) To write configuration descriptor with index X : > echo <config_desc_buf> > /config/XXXX.ufshc/ufs_config_desc_X > > Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org> > ---
<SNIP>
> +static struct configfs_attribute ufshcd_attr_provision_0 = {
Actually, wasn't the original suggestion to use a binary attribute? i.e. configfs_bin_attribute
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