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authorLinus Torvalds <torvalds@linux-foundation.org>2011-06-28 11:15:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-06-28 11:15:17 -0700
commit2e34b429a404675dc4fc4ad2ee339eea028da3ca (patch)
tree93c9595fa65bf1e676f9b2a2b03bc8c187c25d06 /Documentation
parent04b905942b482092a547798a2477f21e32a8f65d (diff)
parent857aab34f04ff86666aa80e751ee696eff0113dd (diff)
Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: MAINTAINERS: add myself as maintainer of USB/IP usb: r8a66597-hcd: fix cannot detect low/full speed device USB: ehci-ath79: fix a NULL pointer dereference USB: Add new FT232H chip to drivers/usb/serial/ftdi_sio.c usb/isp1760: Fix bug preventing the unlinking of control urbs USB: Fix up URB error codes to reflect implementation. xhci: Always set urb->status to zero for isoc endpoints. xhci: Add reset on resume quirk for asrock p67 host xHCI 1.0: Incompatible Device Error USB: don't let errors prevent system sleep USB: don't let the hub driver prevent system sleep USB: change maintainership of ohci-hcd and ehci-hcd xHCI 1.0: Force Stopped Event(FSE) xhci: Don't warn about zeroed bMaxBurst descriptor field. USB: Free bandwidth when usb_disable_device is called. xhci: Reject double add of active endpoints. USB: TI 3410/5052 USB Serial Driver: Fix mem leak when firmware is too big. usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFO usb: musb: host: compare status for negative error values
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/usb/error-codes.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/usb/error-codes.txt b/Documentation/usb/error-codes.txt
index d83703ea74b..b3f606b81a0 100644
--- a/Documentation/usb/error-codes.txt
+++ b/Documentation/usb/error-codes.txt
@@ -76,6 +76,13 @@ A transfer's actual_length may be positive even when an error has been
reported. That's because transfers often involve several packets, so that
one or more packets could finish before an error stops further endpoint I/O.
+For isochronous URBs, the urb status value is non-zero only if the URB is
+unlinked, the device is removed, the host controller is disabled, or the total
+transferred length is less than the requested length and the URB_SHORT_NOT_OK
+flag is set. Completion handlers for isochronous URBs should only see
+urb->status set to zero, -ENOENT, -ECONNRESET, -ESHUTDOWN, or -EREMOTEIO.
+Individual frame descriptor status fields may report more status codes.
+
0 Transfer completed successfully
@@ -132,7 +139,7 @@ one or more packets could finish before an error stops further endpoint I/O.
device removal events immediately.
-EXDEV ISO transfer only partially completed
- look at individual frame status for details
+ (only set in iso_frame_desc[n].status, not urb->status)
-EINVAL ISO madness, if this happens: Log off and go home