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authorPaul Fulghum <paulkf@microgate.com>2009-06-11 12:28:37 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-11 08:50:57 -0700
commit5ba5a5d21204f61ff655b322a90ed91c75194e4b (patch)
treefb2ee32c8480ac9b71286a1c86fe0c91fd230b3e /include/linux/cyclades.h
parent739e0285cbb162c8ddd0061fda581ee54a34c19a (diff)
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tty: synclink_gt add receive pio mode
Add receive programmed IO mode to reduce receive latency when using low data rates. The receive FIFO trigger level of 128 bytes used in DMA mode creates excessive latency when operating at low data rates. PIO mode is selected when user application requests data in blocks of less than 128 bytes. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/cyclades.h')
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