REMOVE LATER ON! In today's UAS host driver MODE SENSE command isn't handled correctly. Each time after power up there is a unit attention condition of RESET_OCCURRED that needs to be cleared (= acknowledged by the host) by the MODE SENSE command. Due to the above this patch resets the RESET_OCCURRED unit attention.
Signed-off-by: Tatyana Brokhman <[email protected]> diff --git a/drivers/usb/gadget/uasp_cmdiu.c b/drivers/usb/gadget/uasp_cmdiu.c index 4df3d98..51eb132 100644 --- a/drivers/usb/gadget/uasp_cmdiu.c +++ b/drivers/usb/gadget/uasp_cmdiu.c @@ -83,6 +83,13 @@ static __u32 check_cmdiu(struct uasp_dev *udev, curlun->lun->unit_attention_data = SS_NO_SENSE; return ua_data; } + /* HACK!!! REMOVE!!! */ + if (curlun->lun->unit_attention_data == SS_RESET_OCCURRED && + cmdiu->cdb[0] == INQUIRY) { + curlun->lun->unit_attention_data = SS_NO_SENSE; + DBG(udev->ucommon->common, "check_cmdiu() - " + "HACK!!! RESETTING unit attention condition\n"); + } } if (curlun && !(curlun->lun->filp) && needs_medium) { -- 1.7.0.4 -- Sent by a Consultant for Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
