Author: ticso
Date: Mon Sep 27 15:55:30 2010
New Revision: 213201
URL: http://svn.freebsd.org/changeset/base/213201
Log:
fix off by one error for twi reads with len != 1.
STOP must be requested before the last byte is received.
Modified:
head/sys/arm/at91/at91_twi.c
Modified: head/sys/arm/at91/at91_twi.c
==============================================================================
--- head/sys/arm/at91/at91_twi.c Mon Sep 27 15:24:16 2010
(r213200)
+++ head/sys/arm/at91/at91_twi.c Mon Sep 27 15:55:30 2010
(r213201)
@@ -348,7 +348,7 @@ at91_twi_transfer(device_t dev, struct i
if ((sr = RD4(sc, TWI_SR)) & TWI_SR_RXRDY) {
len--;
*buf++ = RD4(sc, TWI_RHR) & 0xff;
- if (len == 0 && msgs[i].len != 1)
+ if (len == 1)
WR4(sc, TWI_CR, TWI_CR_STOP);
}
}
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