root/drivers/

[..]
  1. accessibility/
  2. acpi/
  3. amba/
  4. android/
  5. ata/
  6. atm/
  7. auxdisplay/
  8. base/
  9. bcma/
  10. block/
  11. bluetooth/
  12. bus/
  13. cdrom/
  14. char/
  15. clk/
  16. clocksource/
  17. connector/
  18. counter/
  19. cpufreq/
  20. cpuidle/
  21. crypto/
  22. dax/
  23. dca/
  24. devfreq/
  25. dio/
  26. dma-buf/
  27. dma/
  28. edac/
  29. eisa/
  30. extcon/
  31. firewire/
  32. firmware/
  33. fpga/
  34. fsi/
  35. gnss/
  36. gpio/
  37. gpu/
  38. greybus/
  39. hid/
  40. hsi/
  41. hv/
  42. hwmon/
  43. hwspinlock/
  44. hwtracing/
  45. i2c/
  46. i3c/
  47. ide/
  48. idle/
  49. iio/
  50. infiniband/
  51. input/
  52. interconnect/
  53. iommu/
  54. ipack/
  55. irqchip/
  56. isdn/
  57. leds/
  58. lightnvm/
  59. macintosh/
  60. mailbox/
  61. mcb/
  62. md/
  63. media/
  64. memory/
  65. memstick/
  66. message/
  67. mfd/
  68. misc/
  69. mmc/
  70. mtd/
  71. mux/
  72. net/
  73. nfc/
  74. ntb/
  75. nubus/
  76. nvdimm/
  77. nvme/
  78. nvmem/
  79. of/
  80. opp/
  81. oprofile/
  82. parisc/
  83. parport/
  84. pci/
  85. pcmcia/
  86. perf/
  87. phy/
  88. pinctrl/
  89. platform/
  90. pnp/
  91. power/
  92. powercap/
  93. pps/
  94. ps3/
  95. ptp/
  96. pwm/
  97. rapidio/
  98. ras/
  99. regulator/
  100. remoteproc/
  101. reset/
  102. rpmsg/
  103. rtc/
  104. s390/
  105. sbus/
  106. scsi/
  107. sfi/
  108. sh/
  109. siox/
  110. slimbus/
  111. soc/
  112. soundwire/
  113. spi/
  114. spmi/
  115. ssb/
  116. staging/
  117. target/
  118. tc/
  119. tee/
  120. thermal/
  121. thunderbolt/
  122. tty/
  123. uio/
  124. usb/
  125. vfio/
  126. vhost/
  127. video/
  128. virt/
  129. virtio/
  130. visorbus/
  131. vlynq/
  132. vme/
  133. w1/
  134. watchdog/
  135. xen/
  136. zorro/
[..]