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  1. execve("/usr/bin/lsusb", ["lsusb"], [/* 25 vars */]) = 0
  2. brk(0)                                  = 0x10e2000
  3. access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
  4. open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
  5. fstat(3, {st_mode=S_IFREG|0644, st_size=102609, ...}) = 0
  6. mmap(NULL, 102609, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f2ce44f6000
  7. close(3)                                = 0
  8. open("/usr/lib/libusb-1.0.so.0", O_RDONLY|O_CLOEXEC) = 3
  9. read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@C\0\0\0\0\0\0"..., 832) = 832
  10. fstat(3, {st_mode=S_IFREG|0755, st_size=97216, ...}) = 0
  11. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce44f5000
  12. mmap(NULL, 2192736, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f2ce40d7000
  13. mprotect(0x7f2ce40ee000, 2093056, PROT_NONE) = 0
  14. mmap(0x7f2ce42ed000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f2ce42ed000
  15. close(3)                                = 0
  16. open("/usr/lib/libudev.so.1", O_RDONLY|O_CLOEXEC) = 3
  17. read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
  18. fstat(3, {st_mode=S_IFREG|0755, st_size=64056, ...}) = 0
  19. mmap(NULL, 67776, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f2ce44e4000
  20. mprotect(0x7f2ce44f2000, 4096, PROT_NONE) = 0
  21. mmap(0x7f2ce44f3000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe000) = 0x7f2ce44f3000
  22. close(3)                                = 0
  23. open("/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
  24. read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\1\2\0\0\0\0\0"..., 832) = 832
  25. fstat(3, {st_mode=S_IFREG|0755, st_size=1984416, ...}) = 0
  26. mmap(NULL, 3813200, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f2ce3d34000
  27. mprotect(0x7f2ce3ece000, 2093056, PROT_NONE) = 0
  28. mmap(0x7f2ce40cd000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x199000) = 0x7f2ce40cd000
  29. mmap(0x7f2ce40d3000, 16208, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f2ce40d3000
  30. close(3)                                = 0
  31. open("/usr/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
  32. read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300`\0\0\0\0\0\0"..., 832) = 832
  33. fstat(3, {st_mode=S_IFREG|0755, st_size=138242, ...}) = 0
  34. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce44e3000
  35. mmap(NULL, 2208912, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f2ce3b18000
  36. mprotect(0x7f2ce3b2f000, 2093056, PROT_NONE) = 0
  37. mmap(0x7f2ce3d2e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f2ce3d2e000
  38. mmap(0x7f2ce3d30000, 13456, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f2ce3d30000
  39. close(3)                                = 0
  40. open("/usr/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
  41. read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\"\0\0\0\0\0\0"..., 832) = 832
  42. fstat(3, {st_mode=S_IFREG|0755, st_size=31744, ...}) = 0
  43. mmap(NULL, 2128912, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f2ce3910000
  44. mprotect(0x7f2ce3917000, 2093056, PROT_NONE) = 0
  45. mmap(0x7f2ce3b16000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f2ce3b16000
  46. close(3)                                = 0
  47. open("/usr/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
  48. read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\16\0\0\0\0\0\0"..., 832) = 832
  49. fstat(3, {st_mode=S_IFREG|0755, st_size=14648, ...}) = 0
  50. mmap(NULL, 2109712, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f2ce370c000
  51. mprotect(0x7f2ce370f000, 2093056, PROT_NONE) = 0
  52. mmap(0x7f2ce390e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f2ce390e000
  53. close(3)                                = 0
  54. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce44e2000
  55. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce44e1000
  56. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce44e0000
  57. arch_prctl(ARCH_SET_FS, 0x7f2ce44e1700) = 0
  58. mprotect(0x7f2ce40cd000, 16384, PROT_READ) = 0
  59. mprotect(0x7f2ce390e000, 4096, PROT_READ) = 0
  60. mprotect(0x7f2ce3d2e000, 4096, PROT_READ) = 0
  61. mprotect(0x7f2ce3b16000, 4096, PROT_READ) = 0
  62. mprotect(0x7f2ce44f3000, 4096, PROT_READ) = 0
  63. mprotect(0x7f2ce42ed000, 4096, PROT_READ) = 0
  64. mprotect(0x61b000, 4096, PROT_READ)     = 0
  65. mprotect(0x7f2ce4510000, 4096, PROT_READ) = 0
  66. munmap(0x7f2ce44f6000, 102609)          = 0
  67. set_tid_address(0x7f2ce44e19d0)         = 2799
  68. set_robust_list(0x7f2ce44e19e0, 24)     = 0
  69. rt_sigaction(SIGRTMIN, {0x7f2ce3b1db90, [], SA_RESTORER|SA_SIGINFO, 0x7f2ce3b28210}, NULL, 8) = 0
  70. rt_sigaction(SIGRT_1, {0x7f2ce3b1dc20, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7f2ce3b28210}, NULL, 8) = 0
  71. rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
  72. getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
  73. brk(0)                                  = 0x10e2000
  74. brk(0x1103000)                          = 0x1103000
  75. open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
  76. fstat(3, {st_mode=S_IFREG|0644, st_size=2855152, ...}) = 0
  77. mmap(NULL, 2855152, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f2ce3452000
  78. close(3)                                = 0
  79. open("/etc/udev/udev.conf", O_RDONLY|O_CLOEXEC) = 3
  80. fstat(3, {st_mode=S_IFREG|0644, st_size=49, ...}) = 0
  81. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  82. read(3, "# see udev.conf(5) for details\n\n"..., 4096) = 49
  83. read(3, "", 4096)                       = 0
  84. close(3)                                = 0
  85. munmap(0x7f2ce450f000, 4096)            = 0
  86. open("/etc/udev/hwdb.bin", O_RDONLY|O_CLOEXEC) = 3
  87. fstat(3, {st_mode=S_IFREG|0444, st_size=6646785, ...}) = 0
  88. mmap(NULL, 6646785, PROT_READ, MAP_SHARED, 3, 0) = 0x7f2ce2dfb000
  89. openat(AT_FDCWD, "/dev/bus/usb", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 4
  90. getdents(4, /* 6 entries */, 32768)     = 144
  91. close(4)                                = 0
  92. uname({sys="Linux", node="equestria", ...}) = 0
  93. uname({sys="Linux", node="equestria", ...}) = 0
  94. uname({sys="Linux", node="equestria", ...}) = 0
  95. uname({sys="Linux", node="equestria", ...}) = 0
  96. stat("/sys/bus/usb/devices", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
  97. open("/etc/udev/udev.conf", O_RDONLY|O_CLOEXEC) = 4
  98. fstat(4, {st_mode=S_IFREG|0644, st_size=49, ...}) = 0
  99. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  100. read(4, "# see udev.conf(5) for details\n\n"..., 4096) = 49
  101. read(4, "", 4096)                       = 0
  102. close(4)                                = 0
  103. munmap(0x7f2ce450f000, 4096)            = 0
  104. access("/run/udev/control", F_OK)       = 0
  105. socket(PF_NETLINK, SOCK_RAW|SOCK_CLOEXEC|SOCK_NONBLOCK, NETLINK_KOBJECT_UEVENT) = 4
  106. setsockopt(4, SOL_SOCKET, SO_ATTACH_FILTER, "\10\0\0\0\0\0\0\0\360L\221\332\377\177\0\0", 16) = 0
  107. bind(4, {sa_family=AF_NETLINK, pid=0, groups=00000002}, 12) = 0
  108. getsockname(4, {sa_family=AF_NETLINK, pid=2799, groups=00000002}, [12]) = 0
  109. setsockopt(4, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0
  110. fcntl(4, F_GETFL)                       = 0x802 (flags O_RDWR|O_NONBLOCK)
  111. fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
  112. pipe([5, 6])                            = 0
  113. fcntl(6, F_GETFL)                       = 0x1 (flags O_WRONLY)
  114. fcntl(6, F_SETFL, O_WRONLY|O_NONBLOCK)  = 0
  115. mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2ce25fa000
  116. mprotect(0x7f2ce25fa000, 4096, PROT_NONE) = 0
  117. clone(child_stack=0x7f2ce2df9ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f2ce2dfa9d0, tls=0x7f2ce2dfa700, child_tidptr=0x7f2ce2dfa9d0) = 2800
  118. stat("/sys/subsystem", 0x7fffda915cd0)  = -1 ENOENT (No such file or directory)
  119. openat(AT_FDCWD, "/sys/bus", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 7
  120. getdents(7, /* 29 entries */, 32768)    = 800
  121. open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
  122. open("/usr/lib/gconv/gconv-modules", O_RDONLY|O_CLOEXEC) = 8
  123. fstat(8, {st_mode=S_IFREG|0644, st_size=56284, ...}) = 0
  124. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  125. read(8, "# GNU libc iconv configuration.\n"..., 4096) = 4096
  126. read(8, "1002//\tJUS_I.B1.002//\nmodule\tJUS"..., 4096) = 4096
  127. read(8, "ISO-IR-110//\t\tISO-8859-4//\nalias"..., 4096) = 4096
  128. read(8, "\t\tISO-8859-14//\nalias\tISO_8859-1"..., 4096) = 4096
  129. read(8, "IC-ES//\nalias\tEBCDICES//\t\tEBCDIC"..., 4096) = 4096
  130. read(8, "DIC-CP-ES//\t\tIBM284//\nalias\tCSIB"..., 4096) = 4096
  131. read(8, "//\nalias\tCSIBM864//\t\tIBM864//\nal"..., 4096) = 4096
  132. read(8, "BM939//\nmodule\tIBM939//\t\tINTERNA"..., 4096) = 4096
  133. read(8, "EUC-CN//\nalias\tCN-GB//\t\t\tEUC-CN/"..., 4096) = 4096
  134. brk(0x1124000)                          = 0x1124000
  135. read(8, "T//\nmodule\tISO-2022-CN-EXT//\tINT"..., 4096) = 4096
  136. read(8, "//\t\tISO_5428//\nalias\tISO_5428:19"..., 4096) = 4096
  137. read(8, "CII-8\t1\n\n#\tfrom\t\t\tto\t\t\tmodule\t\tc"..., 4096) = 4096
  138. read(8, "\tfrom\t\t\tto\t\t\tmodule\t\tcost\nalias\t"..., 4096) = 4096
  139. read(8, "INTERNAL\t\tIBM9448\t\t1\nmodule\tINTE"..., 4096) = 3036
  140. read(8, "", 4096)                       = 0
  141. close(8)                                = 0
  142. munmap(0x7f2ce450f000, 4096)            = 0
  143. futex(0x7f2ce40d2ad8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
  144. openat(AT_FDCWD, "/sys/bus/usb/devices", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 8
  145. getdents(8, /* 25 entries */, 32768)    = 728
  146. readlink("/sys/bus/usb/devices/1-1", "../../../devices/pci0000:00/0000"..., 1024) = 49
  147. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  148. readlink("/sys/bus/usb/devices/2-1", "../../../devices/pci0000:00/0000"..., 1024) = 49
  149. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  150. readlink("/sys/bus/usb/devices/4-1", "../../../devices/pci0000:00/0000"..., 1024) = 49
  151. stat("/sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  152. readlink("/sys/bus/usb/devices/usb1", "../../../devices/pci0000:00/0000"..., 1024) = 45
  153. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  154. readlink("/sys/bus/usb/devices/usb2", "../../../devices/pci0000:00/0000"..., 1024) = 45
  155. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  156. readlink("/sys/bus/usb/devices/usb3", "../../../devices/pci0000:00/0000"..., 1024) = 45
  157. stat("/sys/devices/pci0000:00/0000:00:14.0/usb3/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  158. readlink("/sys/bus/usb/devices/usb4", "../../../devices/pci0000:00/0000"..., 1024) = 45
  159. stat("/sys/devices/pci0000:00/0000:00:1d.0/usb4/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  160. readlink("/sys/bus/usb/devices/1-1.3:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 65
  161. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  162. readlink("/sys/bus/usb/devices/1-1.3:1.1", "../../../devices/pci0000:00/0000"..., 1024) = 65
  163. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  164. readlink("/sys/bus/usb/devices/1-1.4:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 65
  165. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  166. readlink("/sys/bus/usb/devices/1-1.3", "../../../devices/pci0000:00/0000"..., 1024) = 55
  167. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  168. readlink("/sys/bus/usb/devices/1-1.4", "../../../devices/pci0000:00/0000"..., 1024) = 55
  169. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  170. readlink("/sys/bus/usb/devices/4-1.4", "../../../devices/pci0000:00/0000"..., 1024) = 55
  171. stat("/sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.4/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  172. readlink("/sys/bus/usb/devices/3-0:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 53
  173. stat("/sys/devices/pci0000:00/0000:00:14.0/usb3/3-0:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  174. readlink("/sys/bus/usb/devices/4-0:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 53
  175. stat("/sys/devices/pci0000:00/0000:00:1d.0/usb4/4-0:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  176. readlink("/sys/bus/usb/devices/4-1:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 57
  177. stat("/sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  178. readlink("/sys/bus/usb/devices/4-1.4:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 65
  179. stat("/sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.4/4-1.4:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  180. readlink("/sys/bus/usb/devices/4-1.4:1.1", "../../../devices/pci0000:00/0000"..., 1024) = 65
  181. stat("/sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.4/4-1.4:1.1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  182. readlink("/sys/bus/usb/devices/1-0:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 53
  183. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-0:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  184. readlink("/sys/bus/usb/devices/1-1:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 57
  185. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  186. readlink("/sys/bus/usb/devices/2-0:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 53
  187. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-0:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  188. readlink("/sys/bus/usb/devices/2-1:1.0", "../../../devices/pci0000:00/0000"..., 1024) = 57
  189. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  190. readlink("/sys/bus/usb/devices/2-1:1.1", "../../../devices/pci0000:00/0000"..., 1024) = 57
  191. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  192. getdents(8, /* 0 entries */, 32768)     = 0
  193. close(8)                                = 0
  194. getdents(7, /* 0 entries */, 32768)     = 0
  195. close(7)                                = 0
  196. openat(AT_FDCWD, "/sys/class", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 7
  197. getdents(7, /* 48 entries */, 32768)    = 1400
  198. getdents(7, /* 0 entries */, 32768)     = 0
  199. close(7)                                = 0
  200. readlink("/sys/devices/pci0000:00/0000:00:14.0/usb2", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  201. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  202. open("/sys/devices/pci0000:00/0000:00:14.0/usb2/uevent", O_RDONLY|O_CLOEXEC) = 7
  203. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  204. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  205. read(7, "MAJOR=189\nMINOR=128\nDEVNAME=bus/"..., 4096) = 126
  206. read(7, "", 4096)                       = 0
  207. close(7)                                = 0
  208. munmap(0x7f2ce450f000, 4096)            = 0
  209. open("/sys/bus/usb/devices/usb2/busnum", O_RDONLY) = 7
  210. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  211. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  212. read(7, "2\n", 4096)                    = 2
  213. close(7)                                = 0
  214. munmap(0x7f2ce450f000, 4096)            = 0
  215. open("/sys/bus/usb/devices/usb2/devnum", O_RDONLY) = 7
  216. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  217. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  218. read(7, "1\n", 4096)                    = 2
  219. close(7)                                = 0
  220. munmap(0x7f2ce450f000, 4096)            = 0
  221. open("/sys/bus/usb/devices/usb2/speed", O_RDONLY) = 7
  222. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  223. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  224. read(7, "480\n", 4096)                  = 4
  225. close(7)                                = 0
  226. munmap(0x7f2ce450f000, 4096)            = 0
  227. open("/sys/bus/usb/devices/usb2/descriptors", O_RDONLY) = 7
  228. read(7, "\22\1\0\2\t\0\1@k\35\2\0\27\3\3\2\1\1\t\2\31\0\1\1\0\340\0\t\4\0\0\1"..., 1024) = 43
  229. close(7)                                = 0
  230. readlink("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-0:1.0", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  231. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-0:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  232. open("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-0:1.0/uevent", O_RDONLY|O_CLOEXEC) = 7
  233. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  234. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  235. read(7, "DEVTYPE=usb_interface\nDRIVER=hub"..., 4096) = 138
  236. read(7, "", 4096)                       = 0
  237. close(7)                                = 0
  238. munmap(0x7f2ce450f000, 4096)            = 0
  239. readlink("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  240. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  241. open("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/uevent", O_RDONLY|O_CLOEXEC) = 7
  242. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  243. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  244. read(7, "MAJOR=189\nMINOR=132\nDEVNAME=bus/"..., 4096) = 128
  245. read(7, "", 4096)                       = 0
  246. close(7)                                = 0
  247. munmap(0x7f2ce450f000, 4096)            = 0
  248. open("/sys/bus/usb/devices/2-1/busnum", O_RDONLY) = 7
  249. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  250. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  251. read(7, "2\n", 4096)                    = 2
  252. close(7)                                = 0
  253. munmap(0x7f2ce450f000, 4096)            = 0
  254. open("/sys/bus/usb/devices/2-1/devnum", O_RDONLY) = 7
  255. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  256. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  257. read(7, "5\n", 4096)                    = 2
  258. close(7)                                = 0
  259. munmap(0x7f2ce450f000, 4096)            = 0
  260. open("/sys/bus/usb/devices/2-1/speed", O_RDONLY) = 7
  261. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  262. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  263. read(7, "12\n", 4096)                   = 3
  264. close(7)                                = 0
  265. munmap(0x7f2ce450f000, 4096)            = 0
  266. open("/sys/bus/usb/devices/2-1/descriptors", O_RDONLY) = 7
  267. read(7, "\22\1\20\1\0\0\0\10\332\t\220\220\2\1\1\2\0\1\t\2;\0\2\1\0\2402\t\4\0\0\1"..., 1024) = 77
  268. close(7)                                = 0
  269. readlink("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.0", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  270. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  271. open("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.0/uevent", O_RDONLY|O_CLOEXEC) = 7
  272. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  273. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  274. read(7, "DEVTYPE=usb_interface\nDRIVER=usb"..., 4096) = 143
  275. read(7, "", 4096)                       = 0
  276. close(7)                                = 0
  277. munmap(0x7f2ce450f000, 4096)            = 0
  278. readlink("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.1", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  279. stat("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  280. open("/sys/devices/pci0000:00/0000:00:14.0/usb2/2-1/2-1:1.1/uevent", O_RDONLY|O_CLOEXEC) = 7
  281. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  282. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  283. read(7, "DEVTYPE=usb_interface\nDRIVER=usb"..., 4096) = 143
  284. read(7, "", 4096)                       = 0
  285. close(7)                                = 0
  286. munmap(0x7f2ce450f000, 4096)            = 0
  287. readlink("/sys/devices/pci0000:00/0000:00:14.0/usb3", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  288. stat("/sys/devices/pci0000:00/0000:00:14.0/usb3/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  289. open("/sys/devices/pci0000:00/0000:00:14.0/usb3/uevent", O_RDONLY|O_CLOEXEC) = 7
  290. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  291. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  292. read(7, "MAJOR=189\nMINOR=256\nDEVNAME=bus/"..., 4096) = 126
  293. read(7, "", 4096)                       = 0
  294. close(7)                                = 0
  295. munmap(0x7f2ce450f000, 4096)            = 0
  296. open("/sys/bus/usb/devices/usb3/busnum", O_RDONLY) = 7
  297. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  298. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  299. read(7, "3\n", 4096)                    = 2
  300. close(7)                                = 0
  301. munmap(0x7f2ce450f000, 4096)            = 0
  302. open("/sys/bus/usb/devices/usb3/devnum", O_RDONLY) = 7
  303. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  304. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  305. read(7, "1\n", 4096)                    = 2
  306. close(7)                                = 0
  307. munmap(0x7f2ce450f000, 4096)            = 0
  308. open("/sys/bus/usb/devices/usb3/speed", O_RDONLY) = 7
  309. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  310. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  311. read(7, "5000\n", 4096)                 = 5
  312. close(7)                                = 0
  313. munmap(0x7f2ce450f000, 4096)            = 0
  314. open("/sys/bus/usb/devices/usb3/descriptors", O_RDONLY) = 7
  315. read(7, "\22\1\0\3\t\0\3\tk\35\3\0\27\3\3\2\1\1\t\2\37\0\1\1\0\340\0\t\4\0\0\1"..., 1024) = 49
  316. close(7)                                = 0
  317. readlink("/sys/devices/pci0000:00/0000:00:14.0/usb3/3-0:1.0", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  318. stat("/sys/devices/pci0000:00/0000:00:14.0/usb3/3-0:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  319. open("/sys/devices/pci0000:00/0000:00:14.0/usb3/3-0:1.0/uevent", O_RDONLY|O_CLOEXEC) = 7
  320. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  321. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  322. read(7, "DEVTYPE=usb_interface\nDRIVER=hub"..., 4096) = 138
  323. read(7, "", 4096)                       = 0
  324. close(7)                                = 0
  325. munmap(0x7f2ce450f000, 4096)            = 0
  326. readlink("/sys/devices/pci0000:00/0000:00:1a.0/usb1", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  327. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  328. open("/sys/devices/pci0000:00/0000:00:1a.0/usb1/uevent", O_RDONLY|O_CLOEXEC) = 7
  329. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  330. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  331. read(7, "MAJOR=189\nMINOR=0\nDEVNAME=bus/us"..., 4096) = 124
  332. read(7, "", 4096)                       = 0
  333. close(7)                                = 0
  334. munmap(0x7f2ce450f000, 4096)            = 0
  335. open("/sys/bus/usb/devices/usb1/busnum", O_RDONLY) = 7
  336. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  337. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  338. read(7, "1\n", 4096)                    = 2
  339. close(7)                                = 0
  340. munmap(0x7f2ce450f000, 4096)            = 0
  341. open("/sys/bus/usb/devices/usb1/devnum", O_RDONLY) = 7
  342. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  343. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  344. read(7, "1\n", 4096)                    = 2
  345. close(7)                                = 0
  346. munmap(0x7f2ce450f000, 4096)            = 0
  347. open("/sys/bus/usb/devices/usb1/speed", O_RDONLY) = 7
  348. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  349. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  350. read(7, "480\n", 4096)                  = 4
  351. close(7)                                = 0
  352. munmap(0x7f2ce450f000, 4096)            = 0
  353. open("/sys/bus/usb/devices/usb1/descriptors", O_RDONLY) = 7
  354. read(7, "\22\1\0\2\t\0\0@k\35\2\0\27\3\3\2\1\1\t\2\31\0\1\1\0\340\0\t\4\0\0\1"..., 1024) = 43
  355. close(7)                                = 0
  356. readlink("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-0:1.0", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  357. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-0:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  358. open("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-0:1.0/uevent", O_RDONLY|O_CLOEXEC) = 7
  359. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  360. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  361. read(7, "DEVTYPE=usb_interface\nDRIVER=hub"..., 4096) = 138
  362. read(7, "", 4096)                       = 0
  363. close(7)                                = 0
  364. munmap(0x7f2ce450f000, 4096)            = 0
  365. readlink("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  366. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  367. open("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/uevent", O_RDONLY|O_CLOEXEC) = 7
  368. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  369. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  370. read(7, "MAJOR=189\nMINOR=1\nDEVNAME=bus/us"..., 4096) = 123
  371. read(7, "", 4096)                       = 0
  372. close(7)                                = 0
  373. munmap(0x7f2ce450f000, 4096)            = 0
  374. open("/sys/bus/usb/devices/1-1/busnum", O_RDONLY) = 7
  375. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  376. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  377. read(7, "1\n", 4096)                    = 2
  378. close(7)                                = 0
  379. munmap(0x7f2ce450f000, 4096)            = 0
  380. open("/sys/bus/usb/devices/1-1/devnum", O_RDONLY) = 7
  381. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  382. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  383. read(7, "2\n", 4096)                    = 2
  384. close(7)                                = 0
  385. munmap(0x7f2ce450f000, 4096)            = 0
  386. open("/sys/bus/usb/devices/1-1/speed", O_RDONLY) = 7
  387. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  388. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  389. read(7, "480\n", 4096)                  = 4
  390. close(7)                                = 0
  391. munmap(0x7f2ce450f000, 4096)            = 0
  392. open("/sys/bus/usb/devices/1-1/descriptors", O_RDONLY) = 7
  393. read(7, "\22\1\0\2\t\0\1@\207\200$\0\0\0\0\0\0\1\t\2\31\0\1\1\0\340\0\t\4\0\0\1"..., 1024) = 43
  394. close(7)                                = 0
  395. readlink("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  396. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  397. open("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/uevent", O_RDONLY|O_CLOEXEC) = 7
  398. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  399. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  400. read(7, "MAJOR=189\nMINOR=2\nDEVNAME=bus/us"..., 4096) = 129
  401. read(7, "", 4096)                       = 0
  402. close(7)                                = 0
  403. munmap(0x7f2ce450f000, 4096)            = 0
  404. open("/sys/bus/usb/devices/1-1.3/busnum", O_RDONLY) = 7
  405. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  406. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  407. read(7, "1\n", 4096)                    = 2
  408. close(7)                                = 0
  409. munmap(0x7f2ce450f000, 4096)            = 0
  410. open("/sys/bus/usb/devices/1-1.3/devnum", O_RDONLY) = 7
  411. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  412. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  413. read(7, "3\n", 4096)                    = 2
  414. close(7)                                = 0
  415. munmap(0x7f2ce450f000, 4096)            = 0
  416. open("/sys/bus/usb/devices/1-1.3/speed", O_RDONLY) = 7
  417. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  418. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  419. read(7, "12\n", 4096)                   = 3
  420. close(7)                                = 0
  421. munmap(0x7f2ce450f000, 4096)            = 0
  422. open("/sys/bus/usb/devices/1-1.3/descriptors", O_RDONLY) = 7
  423. read(7, "\22\1\0\2\340\1\1@\207\200\332\7ix\0\0\0\1\t\2\261\0\2\1\0\340\0\t\4\0\0\3"..., 1024) = 195
  424. close(7)                                = 0
  425. readlink("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  426. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  427. open("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/uevent", O_RDONLY|O_CLOEXEC) = 7
  428. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  429. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  430. read(7, "DEVTYPE=usb_interface\nDRIVER=btu"..., 4096) = 147
  431. read(7, "", 4096)                       = 0
  432. close(7)                                = 0
  433. munmap(0x7f2ce450f000, 4096)            = 0
  434. readlink("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  435. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  436. open("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1/uevent", O_RDONLY|O_CLOEXEC) = 7
  437. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  438. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  439. read(7, "DEVTYPE=usb_interface\nDRIVER=btu"..., 4096) = 147
  440. read(7, "", 4096)                       = 0
  441. close(7)                                = 0
  442. munmap(0x7f2ce450f000, 4096)            = 0
  443. readlink("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4", 0x7fffda915940, 1024) = -1 EINVAL (Invalid argument)
  444. stat("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/uevent", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  445. open("/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/uevent", O_RDONLY|O_CLOEXEC) = 7
  446. fstat(7, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
  447. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  448. read(7, "MAJOR=189\nMINOR=3\nDEVNAME=bus/us"..., 4096) = 132
  449. read(7, "", 4096)                       = 0
  450. close(7)                                = 0
  451. munmap(0x7f2ce450f000, 4096)            = 0
  452. open("/sys/bus/usb/devices/1-1.4/busnum", O_RDONLY) = 7
  453. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  454. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  455. read(7, "1\n", 4096)                    = 2
  456. close(7)                                = 0
  457. munmap(0x7f2ce450f000, 4096)            = 0
  458. open("/sys/bus/usb/devices/1-1.4/devnum", O_RDONLY) = 7
  459. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  460. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  461. read(7, "4\n", 4096)                    = 2
  462. close(7)                                = 0
  463. munmap(0x7f2ce450f000, 4096)            = 0
  464. open("/sys/bus/usb/devices/1-1.4/speed", O_RDONLY) = 7
  465. fstat(7, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
  466. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ce450f000
  467. read(7, "480\n", 4096)                  = 4
  468. close(7)                                = 0
  469. munmap(0x7f2ce450f000, 4096)            = 0
  470. open("/sys/bus/usb/devices/1-1.4/descriptors", O_RDONLY) = 7
  471. read(7,
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