Scsi - Index of

1139 /* Give the device some time to recover from the reset,
1140 * but don't delay disconnect processing. */
1141 wait_event_interruptible_timeout(us->dev_reset_wait,
1142 test_bit(US_FLIDX_DISCONNECTING, &us->flags),
1143 HZ*6);
1144 if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) {
1145 US_DEBUGP("Reset interrupted by disconnect\n");
1146 goto Done;
1147 }
1148
1149 US_DEBUGP("Soft reset: clearing bulk-in endpoint halt\n");
1150 result = usb_stor_clear_halt(us, us->recv_bulk_pipe);
1151
1152 US_DEBUGP("Soft reset: clearing bulk-out endpoint halt\n");
186
1153 result2 = usb_stor_clear_halt(us, us->send_bulk_pipe);
1154
1155 /* return a result code based on the result of the control message */
1156 if (result < 0 || result2 < 0) {
1157 US_DEBUGP("Soft reset failed\n");
1158 goto Done;
1159 }
1160 US_DEBUGP("Soft reset done\n");
1161 rc = SUCCESS;
1162
1163 Done:
1164 clear_bit(US_FLIDX_RESETTING, &us->flags);
1165 return rc;
1166 }
前面几行是赋值,然后usb_stor_report_device_reset()被调用. usb_stor_report_device_reset()
定义于drivers/usb/storage/scsiglue.c 中,
308 /* Report a driver-initiated device reset to the SCSI layer.
309 * Calling this for a SCSI-initiated reset is unnecessary but harmless.
310 * The caller must own the SCSI host lock. */
311 void usb_stor_report_device_reset(struct us_data *us)
312 {
313 int i;
314
315 scsi_report_device_reset(us->host, 0, 0);
316 if (us->flags & US_FL_SCM_MULT_TARG) {
317 for (i = 1; i < us->host->max_id; ++i)
318 scsi_report_device_reset(us->host, 0, i);
319 }
320 }