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authorJohan Hovold <jhovold@gmail.com>2014-01-02 22:49:24 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-03 21:42:24 +0100
commit440ebadeae9298d7de3d4d105342691841ec88d0 (patch)
tree62a76ffed57da40fff8fe862133acfbd0b2cdc3a /drivers/usb/serial
parentUSB: pl2303: switch to generic TIOCMIWAIT implementation (diff)
downloadlinux-440ebadeae9298d7de3d4d105342691841ec88d0.tar.xz
linux-440ebadeae9298d7de3d4d105342691841ec88d0.zip
USB: cypress_m8: fix ring-indicator detection and reporting
Fix ring-indicator (RI) status-bit definition, which was defined as CTS, effectively preventing RI-changes from being detected while reporting false RI status. This bug predates git. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r--drivers/usb/serial/cypress_m8.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h
index b461311a2ae7..ce13e61b7d55 100644
--- a/drivers/usb/serial/cypress_m8.h
+++ b/drivers/usb/serial/cypress_m8.h
@@ -63,7 +63,7 @@
#define UART_DSR 0x20 /* data set ready - flow control - device to host */
#define CONTROL_RTS 0x10 /* request to send - flow control - host to device */
#define UART_CTS 0x10 /* clear to send - flow control - device to host */
-#define UART_RI 0x10 /* ring indicator - modem - device to host */
+#define UART_RI 0x80 /* ring indicator - modem - device to host */
#define UART_CD 0x40 /* carrier detect - modem - device to host */
#define CYP_ERROR 0x08 /* received from input report - device to host */
/* Note - the below has nothing to do with the "feature report" reset */