Hi John,
Do you mean the device_table.txt file which is in ~/ltib/bin ? In that
file I find
# SPI devices
/dev/qspi c 666 0 0 126 0 - - -
and in the device_genromfs.txt
qspi,c,126,0
.
.
.
spidev0.0,c,153,0 spidev0.1,c,153,1 spidev0.2,c,153,2
spidev0.3,c,153,3 spidev0.4,c,153,4 spidev0.5,c,153,5
spidev0.6,c,153,6 spidev0.7,c,153,7
I now this is related but I don't know how exactly it is.
Thanks for your answer.
regards
On 08/25/2010 11:32 AM, John Wissel wrote:
Try checking the devices file for you under
your arch directory
On 8/25/10 12:14 PM, "Jorge A. Castro" <address@hidden>
wrote:
Hi Kevin,
Thanks for your answer. I'm able to move to /sys/class/ and actually I
found there spi_dev and spitest folders there, but nothing is in them.
What can be happening?
address@hidden class]# ls
bdi mem ppp sound usb_endpoint
i2c-adapter misc rtc spi_master usb_host
i2c-dev mmc_host scsi_device spidev vc
input mtd scsi_disk tty vtconsole
leds net scsi_host usb_device
address@hidden class]# ls spi_master/
address@hidden class]# ls spidev/
address@hidden class]#
Thanks a lot!!!
Best regards.
Jorge Castro
On 08/24/2010 06:16 PM, Kevin Wells wrote:
Hi Jorge,
<*> Bitbanging SPI master
You can remove this (unless you’ve added the logic to support GPIO
based SPI). There is no default GPIO setup for this in the 32x0.
You may need to manually create the device node. I use sysfs to
determine the node numbers for the device.
address@hidden /]# cd /sys/class/spi_master/spi0/device/spi0.0/
address@hidden spi0.0]# ls
bus modalias spidev:spidev0.0 uevent
driver power subsystem
address@hidden spi0.0]# cat modalias
spidev
address@hidden spi0.0]# cat spidev\:spidev0.0/
spidev:spidev0.0/dev spidev:spidev0.0/subsystem/
spidev:spidev0.0/device/ spidev:spidev0.0/uevent
spidev:spidev0.0/power/
address@hidden spi0.0]# cat spidev\:spidev0.0/dev
153:0
address@hidden spi0.0]#
Then I create the node…
address@hidden spi0.0]# mknod /dev/spi0 c 153 0
address@hidden spi0.0]# cat /dev/spi0
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
Maybe I’ll stick this in ./merge
thanks,
Kevin
From:
address@hidden
<mailto:address@hidden>
[mailto:address@hidden]
On Behalf Of Jorge A. Castro
Sent: Tuesday, August 24, 2010 12:51 PM
To: address@hidden
Subject: Re: [Ltib] SPI missing
Hi everyone,
I apologize for being so insistent, but someone can bring me any idea
how to solve this. I'm not able to see any device node related to spi.
Thanks a lot for any idea!
Best regards.
On 08/23/2010 11:32 AM, Jorge A. Castro wrote:
I had enable most of related with SPI in
order to try to communicate to an specific module. I'm using Future
Designs LPC3250 development kit.
Nevertheless, in the /dev/ I'm not able to see any node related with
spi. What can i be missing?
This is what I get in the Configuration and the nodes in /dev.
Thanks for any help in this matter.
Best regards.
--- SPI support
*** SPI Master Controller Drivers ***
<*> Bitbanging SPI master
<M> LPC32XX SPI Controller
*** SPI Protocol Master ***
<*> SPI EEPROMs from most vendors
<*> User mode SPI device driver support
< > Infineon TLE62X0 (for power swithcing)
address@hidden /]# ls dev
XOR ppp tty38
bus ptmx tty39
console pts tty4
cpu_dma_latency ram tty40
disk ram0 tty41
fb ram1 tty42
fb0 ram2 tty43
full ram3 tty44
i2c-0 ramdisk tty45
i2c-1 random tty46
i2c-2 sequencer tty47
input sequencer2 tty48
kmem shm tty49
kmsg snd tty5
log tty tty50
loop0 tty0 tty51
loop1 tty1 tty52
loop2 tty10 tty53
loop3 tty11 tty54
loop4 tty12 tty55
loop5 tty13 tty56
loop6 tty14 tty57
loop7 tty15 tty58
mem tty16 tty59
mmcblk0 tty17 tty6
mmcblk0p1 tty18 tty60
mtd0 tty19 tty61
mtd0ro tty2 tty62
mtd1 tty20 tty63
mtd1ro tty21 tty7
mtd2 tty22 tty8
mtd2ro tty23 tty9
mtd3 tty24 ttyS0
mtd3ro tty25 ttyS1
mtd4 tty26 ttyS2
mtd4ro tty27 ttyS3
mtd5 tty28 ttyTX0
mtd5ro tty29 urandom
mtdblock0 tty3 usbdev1.1
mtdblock1 tty30 usbdev1.1_ep00
mtdblock2 tty31 usbdev1.1_ep81
mtdblock3 tty32 vcs
mtdblock4 tty33 vcsa
mtdblock5 tty34 watchdog
network_latency tty35 zero
network_throughput tty36
null tty37
--
Jorge A. Castro
Canam-Technology, Inc.
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