63   char buf[512];  in rt_thread_smart_dm_scan()  local
65 …if (snprintf(buf, sizeof(buf), "%s/devices", pci_get_param(a, "rt-thread-smart-dm.path")) == sizeo…  in rt_thread_smart_dm_scan()
68   f = fopen(buf, "r");  in rt_thread_smart_dm_scan()
70     a->error("Cannot open %s", buf);  in rt_thread_smart_dm_scan()
72   while (fgets(buf, sizeof(buf)-1, f))  in rt_thread_smart_dm_scan()
80       cnt = sscanf(buf, "%x %x %x" F F F F F F F F F F F F F F "%n",  in rt_thread_smart_dm_scan()
118           while (buf[offset] && isspace(buf[offset]))  in rt_thread_smart_dm_scan()
120           driver = &buf[offset];  in rt_thread_smart_dm_scan()
121           while (buf[offset] && !isspace(buf[offset]))  in rt_thread_smart_dm_scan()
123           buf[offset] = '\0';  in rt_thread_smart_dm_scan()
144       char buf[1024];  in rt_thread_smart_dm_setup()  local
148       e = snprintf(buf, sizeof(buf), "%s/%04x:%02x:%02x.%u",  in rt_thread_smart_dm_setup()
151       if (e < 0 || e >= (int) sizeof(buf))  in rt_thread_smart_dm_setup()
154       a->fd = open(buf, a->fd_rw ? O_RDWR : O_RDONLY);  in rt_thread_smart_dm_setup()
156         a->warning("Cannot open %s", buf);  in rt_thread_smart_dm_setup()
163 rt_thread_smart_dm_read(struct pci_dev *d, int pos, byte *buf, int len)  in rt_thread_smart_dm_read()  argument
170   res = pread(fd, buf, len, pos);  in rt_thread_smart_dm_read()
182 rt_thread_smart_dm_write(struct pci_dev *d, int pos, byte *buf, int len)  in rt_thread_smart_dm_write()  argument
189   res = pwrite(fd, buf, len, pos);  in rt_thread_smart_dm_write()