1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index e62d23f65180..d28c14e23c32 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1757,6 +1757,14 @@ config SCSI_ESP_CORE
         tristate "ESP Scsi Driver Core"
         depends on SCSI
         select SCSI_SPI_ATTRS
+        help
+          This is a core driver for NCR53c9x based scsi chipsets,
+          also known as "ESP" for Emulex Scsi Processor or
+          Enhanced Scsi Processor.  This driver does not exist by
+          itself, there are front-end drivers which, when enabled,
+          select and enable this driver.  One example is SCSI_SUNESP.
+          These front-end drivers provide probing, DMA, and register
+          access support for the core driver.
 
 config SCSI_SUNESP
         tristate "Sparc ESP Scsi Driver"