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David Brownell fbf54dd320 USB: usb/dma doc updates ... This patch updates some of the documentation about DMA buffer management for USB, and ways to avoid extra copying. Our understanding of the issues has improved over time. - Most drivers should *avoid* the dma-coherent allocators. There are a few exceptions (like the HID driver). - Some methods are currently commented out; it seems folk writing USB drivers aren't doing performance tuning at that level yet. - Just avoid highmem; there's no good way to pass an "I can do highmem DMA" capability through a driver stack. This is easy, everything already avoids highmem. But it'd be nice if x86_32 systems with much physical memory could use it directly with network adapters and mass storage devices. (Patch, anyone?) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		18 years ago
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CREDITS	documentation: convert the Documentation directory to UTF-8	18 years ago
URB.txt	…
acm.txt	USB: small update to Documentation/usb/acm.txt	18 years ago
auerswald.txt	…
dma.txt	USB: usb/dma doc updates	18 years ago
ehci.txt	…
error-codes.txt	…
gadget_serial.txt	…
hiddev.txt	Fix typos in /Documentation : Misc	18 years ago
hotplug.txt	…
linux.inf	…
mtouchusb.txt	…
ohci.txt	…
persist.txt	USB: add power/persist device attribute	18 years ago
proc_usb_info.txt	USB: indicate active altsetting in proc/bus/usb/devices file	18 years ago
rio.txt	Fix typos in /Documentation : 'T''	18 years ago
uhci.txt	…
usb-help.txt	…
usb-serial.txt	documentation: convert the Documentation directory to UTF-8	18 years ago
usbmon.txt	usbmon: Extended text API	18 years ago