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296 }<br />
297<br />
298 US_DEBUGP("-- transfer complete\n");<br />
299 return USB_STOR_XFER_GOOD;<br />
300<br />
301 /* stalled */<br />
302 case -EPIPE:<br />
303 /* for control endpoints, (used by CB[I]) a stall indicates<br />
304 * a failed command */<br />
305 if (usb_pipecontrol(pipe)) {<br />
306 US_DEBUGP("-- stall on control pipe\n");<br />
307 return USB_STOR_XFER_STALLED;<br />
308 }<br />
309<br />
310 /* for other sorts <strong>of</strong> endpoint, clear the stall */<br />
311 US_DEBUGP("clearing endpoint halt for pipe 0x%x\n", pipe);<br />
312 if (usb_stor_clear_halt(us, pipe) < 0)<br />
313 return USB_STOR_XFER_ERROR;<br />
314 return USB_STOR_XFER_STALLED;<br />
315<br />
316 /* timeout or excessively long NAK */<br />
317 case -ETIMEDOUT:<br />
318 US_DEBUGP("-- timeout or NAK\n");<br />
319 return USB_STOR_XFER_ERROR;<br />
320<br />
321 /* babble - the device tried to send more than we wanted to read */<br />
322 case -EOVERFLOW:<br />
323 US_DEBUGP("-- babble\n");<br />
324 return USB_STOR_XFER_LONG;<br />
160<br />
325<br />
326 /* the transfer was cancelled by abort, disconnect, or timeout */<br />
327 case -ECONNRESET:<br />
328 US_DEBUGP("-- transfer cancelled\n");<br />
329 return USB_STOR_XFER_ERROR;<br />
330<br />
331 /* short scatter-gather read transfer */<br />
332 case -EREMOTEIO:<br />
333 US_DEBUGP("-- short read transfer\n");<br />
334 return USB_STOR_XFER_SHORT;<br />
335<br />
336 /* abort or disconnect in progress */<br />
337 case -EIO:<br />
338 US_DEBUGP("-- abort or disconnect in progress\n");
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