Hi,
The problem was in the spidev_test.c program itself, in linux-2.6.32.
After applying the following patch taken from linux-2.6.34, 1 byte transfers
work.
http://git.kernel.org/?p=linux/kernel/git/longterm/linux-2.6.34.y.git;a=blobdiff;f=Documentation/spi/spidev_test.c;h=16feda9014692a87a4996bf51d759ab9e7500ee5;hp=10abd3773e49122aab0dfad27f7cb2c91b8d5d08;hb=95b1ed2ac7ffe3205afc6f5a20320fbdb984da92;hpb=dda04c7bcf58cb02ac796beb1cf483aa5277f2af
Elvis Dowson
------------------------------------------------------------------------------
What You Don't Know About Data Connectivity CAN Hurt You
This paper provides an overview of data connectivity, details
its effect on application quality, and explores various alternative
solutions. http://p.sf.net/sfu/progress-d2d
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