Hi,
On 09-03-16 12:28, Marek Vasut wrote:
On 03/09/2016 12:22 PM, Rajat Srivastava wrote:
This patch adds a new 'usb regress' command, that can be used to
regress test a USB device. It performs the following operations:
1. starts the USB device
2. performs read/write operations
3. stops the USB device
4. verifies the contents of read/write operations
Sample Output:
=> usb regress 81000000 82000000 32m
regressing USB..
starting USB...
USB0: Register 200017f NbrPorts 2
Starting the controller
USB XHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
USB write: device 0 block # 0, count 65536 ... 65536 blocks write: OK
USB read: device 0 block # 0, count 65536 ... 65536 blocks read: OK
stopping USB..
verifying data on addresses 0x81000000 and 0x82000000
Total of 65536 word(s) were the same
Signed-off-by: Rajat Srivastava <rajat.srivast...@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bha...@nxp.com>
Does it do anything which cannot be achieved on the command line itself
using "usb reset" "usb write" "usb read" "cmp" commands ?
This seems to be about a reading / writing a usb-disk / usb-storage device.
I believe this can certainly be achieved with the existing disk io commands,
and moreover this seems quite dangerous (overwriting the partition table on
the device), so I think requiring the user to do this explicitly indeed
seems better.
Regards,
Hans
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