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authorTomas Hlavacek <tmshlvck@gmail.com>2012-09-06 03:17:18 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-06 09:22:04 -0700
commit6915c0e487c822e2436683e14302c0b8a6155cc7 (patch)
tree3ef744c612c40517ed64d4f370a14c6c51eaab2f /include/linux/tty.h
parentd83b54250988758cd3b9d21c242f98ae61fa1435 (diff)
tty: uartclk value from serial_core exposed to sysfs
Added file /sys/devices/.../tty/ttySX/uartclk to allow reading uartclk value in struct uart_port in serial_core via sysfs. tty_register_device() has been generalized and refactored in order to add support for setting drvdata and attribute_group to the device. Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/tty.h')
-rw-r--r--include/linux/tty.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 9892121354cd..599d60347bf0 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -412,6 +412,10 @@ extern int tty_register_driver(struct tty_driver *driver);
extern int tty_unregister_driver(struct tty_driver *driver);
extern struct device *tty_register_device(struct tty_driver *driver,
unsigned index, struct device *dev);
+extern struct device *tty_register_device_attr(struct tty_driver *driver,
+ unsigned index, struct device *device,
+ void *drvdata,
+ const struct attribute_group **attr_grp);
extern void tty_unregister_device(struct tty_driver *driver, unsigned index);
extern int tty_read_raw_data(struct tty_struct *tty, unsigned char *bufp,
int buflen);