| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1269242600-30147-3-git-send-email-vapier@gentoo.org> Date: Mon, 22 Mar 2010 03:23:17 -0400 From: Mike Frysinger <vapier@...too.org> To: Andrew Morton <akpm@...ux-foundation.org>, linux-i2c@...r.kernel.org, Ben Dooks <ben-linux@...ff.org> Cc: linux-kernel@...r.kernel.org, uclinux-dist-devel@...ckfin.uclinux.org, Michael Hennerich <michael.hennerich@...log.com> Subject: [PATCH 2/5] i2c-bfin-twi: add debug output for error status From: Michael Hennerich <michael.hennerich@...log.com> Add some debug() code to decode the error register. Signed-off-by: Michael Hennerich <michael.hennerich@...log.com> Signed-off-by: Mike Frysinger <vapier@...too.org> --- drivers/i2c/busses/i2c-bfin-twi.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c index e016b1b..758bb1f 100644 --- a/drivers/i2c/busses/i2c-bfin-twi.c +++ b/drivers/i2c/busses/i2c-bfin-twi.c @@ -156,6 +156,18 @@ static void bfin_twi_handle_interrupt(struct bfin_twi_iface *iface) write_MASTER_CTL(iface, 0); SSYNC(); iface->result = -EIO; + + if (mast_stat & LOSTARB) + dev_dbg(&iface->adap.dev, "Lost Arbitration\n"); + if (mast_stat & ANAK) + dev_dbg(&iface->adap.dev, "Address Not Acknowledged\n"); + if (mast_stat & DNAK) + dev_dbg(&iface->adap.dev, "Data Not Acknowledged\n"); + if (mast_stat & BUFRDERR) + dev_dbg(&iface->adap.dev, "Buffer Read Error\n"); + if (mast_stat & BUFWRERR) + dev_dbg(&iface->adap.dev, "Buffer Write Error\n"); + /* if both err and complete int stats are set, return proper * results. */ -- 1.7.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists