snipplrCallback({"id":72740,"title":"reading-sysfs-devices-in-linux","source":"
  1. #include <sysfs\/libsysfs.h><\/span><\/div><\/li>
  2. #include <stdio.h><\/span><\/div><\/li>
  3.  <\/div><\/li>
  4. \/**<\/span><\/div><\/li>
  5.  * @brief Lists all the devices in the given class.<\/span><\/div><\/li>
  6.  *<\/span><\/div><\/li>
  7.  * @param className Name of the class (in \/sys\/class).<\/span><\/div><\/li>
  8.  *\/<\/span><\/div><\/li>
  9. void<\/span> sysFsListDevices(<\/span>char<\/span> *<\/span>className)<\/span><\/div><\/li>
  10. {<\/span><\/div><\/li>
  11.         struct<\/span> sysfs_class *<\/span>class;<\/span><\/div><\/li>
  12.         struct<\/span> dlist *<\/span>devices;<\/span><\/div><\/li>
  13.         struct<\/span> sysfs_class_device *<\/span>class_device;<\/span><\/div><\/li>
  14.         struct<\/span> sysfs_device *<\/span>device;<\/span><\/div><\/li>
  15.  <\/div><\/li>
  16.         class =<\/span> sysfs_open_class(<\/span>className)<\/span>;<\/span><\/div><\/li>
  17.  <\/div><\/li>
  18.         devices =<\/span> sysfs_get_class_devices(<\/span>class)<\/span>;<\/span><\/div><\/li>
  19.  <\/div><\/li>
  20.         dlist_for_each(<\/span>devices)<\/span> {<\/span><\/div><\/li>
  21.                 class_device =<\/span><\/div><\/li>
  22.                     (<\/span>struct<\/span> sysfs_class_device *<\/span>)<\/span>devices-><\/span>marker-><\/span>data;<\/span><\/div><\/li>
  23.                 printf<\/span><\/a>(<\/span>"Class - Name: %s, classname: %s, path: %s\\n<\/span>"<\/span>,<\/span><\/div><\/li>
  24.                        class_device-><\/span>name,<\/span> class_device-><\/span>classname,<\/span><\/div><\/li>
  25.                        class_device-><\/span>path)<\/span>;<\/span><\/div><\/li>
  26.  <\/div><\/li>
  27.                 device =<\/span> sysfs_get_classdev_device(<\/span>class_device)<\/span>;<\/span><\/div><\/li>
  28.  <\/div><\/li>
  29.                 printf<\/span><\/a><\/div><\/li>
  30.                     (<\/span>"Device - Name: %s, bus_id: %s, bus: %s, driver_name: %s, path: %s\\n<\/span>\\n<\/span>"<\/span>,<\/span><\/div><\/li>
  31.                      device-><\/span>name,<\/span> device-><\/span>bus_id,<\/span> device-><\/span>bus,<\/span><\/div><\/li>
  32.                      device-><\/span>driver_name,<\/span> device-><\/span>path)<\/span>;<\/span><\/div><\/li>
  33.  <\/div><\/li>
  34.         }<\/span><\/div><\/li>
  35.  <\/div><\/li>
  36. \treturn<\/span>;<\/span><\/div><\/li>
  37. }<\/span><\/div><\/li><\/ol><\/pre>","link":"https:\/\/snipplr.com\/view\/72740\/reading-sysfs-devices-in-linux"});