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| 2 | |
| 3 | * Copyright (C) 2011 matt mooney <[email protected]>
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| 4 | * 2005-2007 Takahiro Hirofuchi
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| 5 |
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| 6 |
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| 7 | #include <errno.h>
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| 8 | #include <stdio.h>
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| 9 | #include <string.h>
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| 10 |
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| 11 | #include "usbip_common.h"
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| 12 | #include "utils.h"
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| 13 | #include "sysfs_utils.h"
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| 14 |
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| 15 | int modify_match_busid(char *busid, int add)
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| 16 | {
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| 17 | char attr_name[] = "match_busid";
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| 18 | char command[SYSFS_BUS_ID_SIZE + 4];
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| 19 | char match_busid_attr_path[SYSFS_PATH_MAX];
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| 20 | int rc;
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| 21 | int cmd_size;
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| 22 |
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| 23 | snprintf(match_busid_attr_path, sizeof(match_busid_attr_path),
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| 24 | "%s/%s/%s/%s/%s/%s", SYSFS_MNT_PATH, SYSFS_BUS_NAME,
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| 25 | SYSFS_BUS_TYPE, SYSFS_DRIVERS_NAME, USBIP_HOST_DRV_NAME,
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| 26 | attr_name);
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| 27 |
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| 28 | if (add)
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| 29 | cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "add %s",
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| 30 | busid);
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| 31 | else
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| 32 | cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "del %s",
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| 33 | busid);
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| 34 |
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| 35 | rc = write_sysfs_attribute(match_busid_attr_path, command,
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| 36 | cmd_size);
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| 37 | if (rc < 0) {
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| 38 | dbg("failed to write match_busid: %s", strerror(errno));
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| 39 | return -1;
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| 40 | }
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| 41 |
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| 42 | return 0;
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| 43 | }
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