| 1 | // SPDX-License-Identifier: GPL-2.0 |
|---|---|
| 2 | #include <sys/types.h> |
| 3 | #include <sys/stat.h> |
| 4 | #include <fcntl.h> |
| 5 | #include <errno.h> |
| 6 | |
| 7 | #include "sysfs_utils.h" |
| 8 | #include "usbip_common.h" |
| 9 | |
| 10 | int write_sysfs_attribute(const char *attr_path, const char *new_value, |
| 11 | size_t len) |
| 12 | { |
| 13 | int fd; |
| 14 | int length; |
| 15 | |
| 16 | fd = open(attr_path, O_WRONLY); |
| 17 | if (fd < 0) { |
| 18 | dbg("error opening attribute %s", attr_path); |
| 19 | return -1; |
| 20 | } |
| 21 | |
| 22 | length = write(fd, new_value, len); |
| 23 | if (length < 0) { |
| 24 | dbg("error writing to attribute %s", attr_path); |
| 25 | close(fd); |
| 26 | return -1; |
| 27 | } |
| 28 | |
| 29 | close(fd); |
| 30 | |
| 31 | return 0; |
| 32 | } |
| 33 |