我们在使用深圳数字鱼的pcie转2路串口的卡的时候发现linux驱动编译有问题。
驱动下载地址：http://www.wch.cn/download/CH38XDRV_ZIP.html
编译源码: zip里面的DRV_2S/LINUX/
编译主机：ubuntu 14.04，内核版本 3.13.0-55-generic
lspci -v 是可以看到设备的。
02:00.0 Serial controller: Device 1c00:3253 (rev 10) (prog-if 05 [16850])
Subsystem: Device 1c00:3253
Flags: fast devsel, IRQ 17
I/O ports at e000 [size=256]
Memory at b0708000 (32-bit, prefetchable) [size=32K]
I/O ports at e100 [size=4]
Expansion ROM at b0700000 [disabled] [size=32K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/32 Maskable+ 64bit+
Capabilities: [80] Express Legacy Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
编译错误:
tom@tom-desktop:/tmp/LINUX/driver:)make
make -C /lib/modules/3.13.0-55-generic/build SUBDIRS=/tmp/LINUX/driver modules
make[1]: Entering directory `/usr/src/linux-headers-3.13.0-55-generic'
CC [M] /tmp/LINUX/driver/wch_serial.o
In file included from /tmp/LINUX/driver/wch_serial.c:1:0:
/tmp/LINUX/driver/wch_common.h: In function ‘ser_insert_char’:
/tmp/LINUX/driver/wch_common.h:716:3: warning: passing argument 1 of
‘tty_insert_flip_char’ from incompatible pointer type [enabled by
default]
tty_insert_flip_char(tty, ch, flag);
^
In file included from /tmp/LINUX/driver/wch_common.h:42:0,
from /tmp/LINUX/driver/wch_serial.c:1:
include/linux/tty_flip.h:17:19: note: expected ‘struct tty_port *’ but
argument is of type ‘struct tty_struct *’
static inline int tty_insert_flip_char(struct tty_port *port,
^
In file included from /tmp/LINUX/driver/wch_serial.c:1:0:
/tmp/LINUX/driver/wch_common.h:722:3: warning: passing argument 1 of
‘tty_insert_flip_char’ from incompatible pointer type [enabled by
default]
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
^
In file included from /tmp/LINUX/driver/wch_common.h:42:0,
from /tmp/LINUX/driver/wch_serial.c:1:
include/linux/tty_flip.h:17:19: note: expected ‘struct tty_port *’ but
argument is of type ‘struct tty_struct *’
static inline int tty_insert_flip_char(struct tty_port *port,
^
/tmp/LINUX/driver/wch_serial.c: At top level:
/tmp/LINUX/driver/wch_serial.c:12:40: error: array type has incomplete
element type
static const struct serial_uart_config
wch_uart_config[PORT_SER_MAX_UART + 1] = {
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_startup’:
/tmp/LINUX/driver/wch_serial.c:718:35: error: invalid type argument of
‘->’ (have ‘struct ktermios’)
if (info->tty->termios->c_cflag & CBAUD)
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_shutdown’:
/tmp/LINUX/driver/wch_serial.c:759:42: error: invalid type argument of
‘->’ (have ‘struct ktermios’)
if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_throttle’:
/tmp/LINUX/driver/wch_serial.c:988:21: error: invalid type argument of
‘->’ (have ‘struct ktermios’)
if (tty->termios->c_cflag & CRTSCTS)
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_unthrottle’:
/tmp/LINUX/driver/wch_serial.c:1025:21: error: invalid type argument
of ‘->’ (have ‘struct ktermios’)
if (tty->termios->c_cflag & CRTSCTS)
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_set_info’:
/tmp/LINUX/driver/wch_serial.c:1181:25: error: ‘struct tty_struct’ has
no member named ‘low_latency’
state->info->tty->low_latency = (port->flags &
WCH_UPF_LOW_LATENCY) ? 1 : 0;
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_change_speed’:
/tmp/LINUX/driver/wch_serial.c:2155:17: error: wrong type argument to
unary exclamation mark
if (!tty || !tty->termios || port->type == PORT_UNKNOWN)
^
/tmp/LINUX/driver/wch_serial.c:2160:13: error: incompatible types when
assigning to type ‘struct ktermios *’ from type ‘struct ktermios’
termios = tty->termios;
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_set_termios’:
/tmp/LINUX/driver/wch_serial.c:2192:38: error: invalid type argument
of ‘->’ (have ‘struct ktermios’)
unsigned int cflag = tty->termios->c_cflag;
^
/tmp/LINUX/driver/wch_serial.c:2203:75: error: invalid type argument
of ‘->’ (have ‘struct ktermios’)
if ((cflag ^ old_termios->c_cflag) == 0 &&
RELEVANT_IFLAG(tty->termios->c_iflag ^ old_termios->c_iflag) == 0)
^
/tmp/LINUX/driver/wch_serial.c:2201:35: note: in definition of macro
‘RELEVANT_IFLAG’
#define RELEVANT_IFLAG(iflag) ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_update_termios’:
/tmp/LINUX/driver/wch_serial.c:2248:25: error: invalid type argument
of ‘->’ (have ‘struct ktermios’)
if (tty->termios->c_cflag & CBAUD)
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_block_til_ready’:
/tmp/LINUX/driver/wch_serial.c:2393:32: error: invalid type argument
of ‘->’ (have ‘struct ktermios’)
(info->tty->termios->c_cflag & CLOCAL) ||
^
/tmp/LINUX/driver/wch_serial.c:2399:31: error: invalid type argument
of ‘->’ (have ‘struct ktermios’)
if (info->tty->termios->c_cflag & CBAUD)
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_open’:
/tmp/LINUX/driver/wch_serial.c:2540:12: error: ‘struct tty_struct’ has
no member named ‘low_latency’
tty->low_latency = (state->port->flags & WCH_UPF_LOW_LATENCY) ? 1 : 0;
^
/tmp/LINUX/driver/wch_serial.c: In function ‘ser_receive_chars’:
/tmp/LINUX/driver/wch_serial.c:3206:5: warning: passing argument 1 of
‘tty_flip_buffer_push’ from incompatible pointer type [enabled by
default]
tty_flip_buffer_push(tty);
^
In file included from /tmp/LINUX/driver/wch_common.h:42:0,
from /tmp/LINUX/driver/wch_serial.c:1:
include/linux/tty_flip.h:14:13: note: expected ‘struct tty_port *’ but
argument is of type ‘struct tty_struct *’
extern void tty_flip_buffer_push(struct tty_port *port);
^
/tmp/LINUX/driver/wch_serial.c: At top level:
/tmp/LINUX/driver/wch_serial.c:12:40: warning: ‘wch_uart_config’
defined but not used [-Wunused-variable]
static const struct serial_uart_config
wch_uart_config[PORT_SER_MAX_UART + 1] = {
^
make[2]: *** [/tmp/LINUX/driver/wch_serial.o] Error 1
make[1]: *** [_module_/tmp/LINUX/driver] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-3.13.0-55-generic'
make: *** [modules] Error 2
tom@tom-desktop:/tmp/LINUX/driver:)
应该是驱动是基于比较旧的内核开发的，请问你们有新驱动吗？为什么主流内核不能直接支持这款芯片。