From 0c456cee952f3fa5ae6f5c42f960eeaa39140b62 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 11 Mar 2013 06:08:05 +0000 Subject: [PATCH] spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass --- include/spi.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/spi.h b/include/spi.h index ebc9652160..3fe2e1eab2 100644 --- a/include/spi.h +++ b/include/spi.h @@ -49,10 +49,13 @@ * * bus: ID of the bus that the slave is attached to. * cs: ID of the chip select connected to the slave. + * max_write_size: If non-zero, the maximum number of bytes which can + * be written at once, excluding command bytes. */ struct spi_slave { unsigned int bus; unsigned int cs; + unsigned int max_write_size; }; /*----------------------------------------------------------------------- -- 2.39.5