5 comment "MMC/SD/SDIO Card Drivers"
8 tristate "MMC block device driver"
12 Say Y here to enable the MMC block device driver support.
13 This provides a block device driver, which you can use to
14 mount the filesystem. Almost everyone wishing MMC support
15 should say Y or M here.
17 config MMC_BLOCK_MINORS
18 int "Number of minors per block device"
22 Number of minors per block device. One is needed for every
23 partition on the disk (plus one for the whole disk).
25 Number of total MMC minors available is 256, so your number
26 of supported block devices will be limited to 256 divided
29 Default is 8 to be backwards compatible with previous
30 hardwired device numbering.
32 If unsure, say 8 here.
34 config MMC_BLOCK_BOUNCE
35 bool "Use bounce buffer for simple hosts"
39 SD/MMC is a high latency protocol where it is crucial to
40 send large requests in order to get high performance. Many
41 controllers, however, are restricted to continuous memory
42 (i.e. they can't do scatter-gather), something the kernel
45 Say Y here to help these restricted hosts by bouncing
46 requests back and forth from a large buffer. You will get
47 a big performance gain at the cost of up to 64 KiB of
50 If unsure, say Y here.
53 tristate "SDIO UART/GPS class support"
55 SDIO function driver for SDIO cards that implements the UART
56 class, as well as the GPS class which appears like a UART.
59 tristate "MMC host test driver"
62 Development driver that performs a series of reads and writes
63 to a memory card in order to expose certain well known bugs
64 in host controllers. The tests are executed by writing to the
65 "test" file in sysfs under each card. Note that whatever is
66 on your card will be overwritten by these tests.
68 This driver is only of interest to those developing or
69 testing a host driver. Most people should say N here.