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