linux/drivers/usb/core
Hans de Goede 3d97ff63f8 usbdevfs: Use scatter-gather lists for large bulk transfers
When using urb->transfer_buffer we need to allocate physical contiguous buffers
for the entire transfer, which is pretty much guaranteed to fail with large
transfers.

Currently userspace works around this by breaking large transfers into multiple
urbs. For large bulk transfers this leads to all kind of complications.

This patch makes it possible for userspace to reliable submit large bulk
transfers to scatter-gather capable host controllers in one go, by using a
scatterlist to break the transfer up in managable chunks.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-06 10:53:20 -07:00
..
buffer.c USB: Core: Fix minor coding style issues 2011-01-22 19:35:39 -08:00
config.c usbcore: get BOS descriptor set 2011-09-26 15:51:08 -07:00
devices.c Revert "usb: move struct usb_device->children to struct usb_hub_port->child" 2012-05-14 09:20:37 -07:00
devio.c usbdevfs: Use scatter-gather lists for large bulk transfers 2012-07-06 10:53:20 -07:00
driver.c usb-core: Set intfdata to NULL if a driver's probe method failed 2012-06-13 16:07:22 -07:00
endpoint.c USB: use usb_endpoint_maxp() instead of le16_to_cpu() 2011-08-23 09:47:40 -07:00
file.c USB: rename the usb misc class from "usb" to "usbmisc" 2012-06-13 15:37:13 -07:00
generic.c USB: accept RNDIS configs if there's no alternative 2010-08-10 14:35:43 -07:00
hcd-pci.c USB: add NO_D3_DURING_SLEEP flag and revert 151b612847 2012-06-13 13:11:39 -07:00
hcd.c USB: Make sure to fetch the BOS desc for roothubs. 2012-05-18 15:41:53 -07:00
hub.c USB: Checking the wrong variable in usb_disable_lpm() 2012-06-13 16:37:21 -07:00
Kconfig usb: Kconfig: remove unneeded default value 2012-05-14 08:49:50 -07:00
Makefile usb: Bind devices to ACPI devices when possible 2012-05-11 17:06:13 -07:00
message.c Merge 3.5-rc3 into usb-next 2012-06-20 16:24:02 -07:00
notify.c usb: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed 2011-10-31 19:31:25 -04:00
otg_whitelist.h
quirks.c usb: add USB_QUIRK_RESET_RESUME for M-Audio 88es 2012-04-30 10:26:42 -04:00
sysfs.c USB: allow match on bInterfaceNumber 2012-06-13 15:40:09 -07:00
urb.c usbhid: prevent deadlock during timeout 2012-05-01 13:22:13 -04:00
usb-acpi.c usb: Set device removable state based on ACPI USB data 2012-05-11 17:07:02 -07:00
usb.c usb: fix breakage on systems without ACPI 2012-05-16 05:29:19 -07:00
usb.h usb: Bind devices to ACPI devices when possible 2012-05-11 17:06:13 -07:00