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authorRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>2014-08-05 13:45:59 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-09 02:26:26 +0400
commite676253b19b2d269cccf67fdb1592120a0cd0676 (patch)
tree34618c8fbe8069d007fb2a38ff8b2679dc6a10ea /include/linux/serial_8250.h
parent27d5775e75ec70c104479bd7fcdceb0d6e0203a8 (diff)
downloadlinux-e676253b19b2d269cccf67fdb1592120a0cd0676.tar.xz
serial/8250: Add support for RS485 IOCTLs
This patch allow the users of the 8250 infrastructure to define a handler for RS485 configration. If no handler is defined the 8250 driver will work as usual. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Acked-by: Alan Cox <alan@linux.intel.com> -- v2:Change suggested by Alan "One Thousand Gnomes": - Move rs485 structure further down on the uart_8250_port structure drivers/tty/serial/8250/8250_core.c | 39 +++++++++++++++++++++++++++++++++++++ include/linux/serial_8250.h | 3 +++ 2 files changed, 42 insertions(+) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/serial_8250.h')
-rw-r--r--include/linux/serial_8250.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index f93649e22c43..6dd671765312 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -96,10 +96,13 @@ struct uart_8250_port {
unsigned char msr_saved_flags;
struct uart_8250_dma *dma;
+ struct serial_rs485 rs485;
/* 8250 specific callbacks */
int (*dl_read)(struct uart_8250_port *);
void (*dl_write)(struct uart_8250_port *, int);
+ int (*rs485_config)(struct uart_8250_port *,
+ struct serial_rs485 *rs485);
};
static inline struct uart_8250_port *up_to_u8250p(struct uart_port *up)