[U-Boot] [PATCH] cmd: usb: run 'usb start' when USB is stopped

If USB is stopped, just run 'usb start' instead of printing message. Then user didn't consider whether usb is started or stopped.
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com --- cmd/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/usb.c b/cmd/usb.c index 455127c..4970851 100644 --- a/cmd/usb.c +++ b/cmd/usb.c @@ -651,8 +651,8 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } if (!usb_started) { - printf("USB is stopped. Please issue 'usb start' first.\n"); - return 1; + printf("USB is stopped. Running 'usb start' first.\n"); + do_usb_start(); } if (strncmp(argv[1], "tree", 4) == 0) { puts("USB device tree:\n");

+Marek
On 9 September 2016 at 04:20, Jaehoon Chung jh80.chung@samsung.com wrote:
If USB is stopped, just run 'usb start' instead of printing message. Then user didn't consider whether usb is started or stopped.
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com
cmd/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/usb.c b/cmd/usb.c index 455127c..4970851 100644 --- a/cmd/usb.c +++ b/cmd/usb.c @@ -651,8 +651,8 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } if (!usb_started) {
printf("USB is stopped. Please issue 'usb start' first.\n");
return 1;
printf("USB is stopped. Running 'usb start' first.\n");
do_usb_start(); } if (strncmp(argv[1], "tree", 4) == 0) { puts("USB device tree:\n");
-- 1.9.1
Reviewed-by: Simon Glass sjg@chromium.org

Hi Marek,
On 09/23/2016 01:15 PM, Simon Glass wrote:
+Marek
On 9 September 2016 at 04:20, Jaehoon Chung jh80.chung@samsung.com wrote:
If USB is stopped, just run 'usb start' instead of printing message. Then user didn't consider whether usb is started or stopped.
Do you have any other opinion for this? :)
Best Regards, Jaehoon Chung
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com
cmd/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/usb.c b/cmd/usb.c index 455127c..4970851 100644 --- a/cmd/usb.c +++ b/cmd/usb.c @@ -651,8 +651,8 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } if (!usb_started) {
printf("USB is stopped. Please issue 'usb start' first.\n");
return 1;
printf("USB is stopped. Running 'usb start' first.\n");
do_usb_start(); } if (strncmp(argv[1], "tree", 4) == 0) { puts("USB device tree:\n");
-- 1.9.1
Reviewed-by: Simon Glass sjg@chromium.org

Hi Jaehoon,
On 28/11/16 14:08, Jaehoon Chung wrote:
Hi Marek,
On 09/23/2016 01:15 PM, Simon Glass wrote:
+Marek
On 9 September 2016 at 04:20, Jaehoon Chung jh80.chung@samsung.com wrote:
If USB is stopped, just run 'usb start' instead of printing message. Then user didn't consider whether usb is started or stopped.
Do you have any other opinion for this? :)
Best Regards, Jaehoon Chung
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com
cmd/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/usb.c b/cmd/usb.c index 455127c..4970851 100644 --- a/cmd/usb.c +++ b/cmd/usb.c @@ -651,8 +651,8 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } if (!usb_started) {
printf("USB is stopped. Please issue 'usb start' first.\n");
return 1;
printf("USB is stopped. Running 'usb start' first.\n");
do_usb_start(); }
It seems to ambiguous whether initialization was succeed or not.
Thanks, Minkyu Kang.

Hi,
On 28-11-16 07:54, Minkyu Kang wrote:
Hi Jaehoon,
On 28/11/16 14:08, Jaehoon Chung wrote:
Hi Marek,
On 09/23/2016 01:15 PM, Simon Glass wrote:
+Marek
On 9 September 2016 at 04:20, Jaehoon Chung jh80.chung@samsung.com wrote:
If USB is stopped, just run 'usb start' instead of printing message. Then user didn't consider whether usb is started or stopped.
Do you have any other opinion for this? :)
Best Regards, Jaehoon Chung
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com
cmd/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/usb.c b/cmd/usb.c index 455127c..4970851 100644 --- a/cmd/usb.c +++ b/cmd/usb.c @@ -651,8 +651,8 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } if (!usb_started) {
printf("USB is stopped. Please issue 'usb start' first.\n");
return 1;
printf("USB is stopped. Running 'usb start' first.\n");
do_usb_start(); }
It seems to ambiguous whether initialization was succeed or not.
Right at a minimum it should detect that do_usb_start succeeds. E.g. on an otg port without an otg -> usb-host cable plugged in it will not succeed.
Regards,
Hans

On 11/28/2016 05:11 PM, Hans de Goede wrote:
Hi,
On 28-11-16 07:54, Minkyu Kang wrote:
Hi Jaehoon,
On 28/11/16 14:08, Jaehoon Chung wrote:
Hi Marek,
On 09/23/2016 01:15 PM, Simon Glass wrote:
+Marek
On 9 September 2016 at 04:20, Jaehoon Chung jh80.chung@samsung.com wrote:
If USB is stopped, just run 'usb start' instead of printing message. Then user didn't consider whether usb is started or stopped.
Do you have any other opinion for this? :)
Best Regards, Jaehoon Chung
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com
cmd/usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/usb.c b/cmd/usb.c index 455127c..4970851 100644 --- a/cmd/usb.c +++ b/cmd/usb.c @@ -651,8 +651,8 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } if (!usb_started) {
printf("USB is stopped. Please issue 'usb start' first.\n");
return 1;
printf("USB is stopped. Running 'usb start' first.\n");
do_usb_start(); }
It seems to ambiguous whether initialization was succeed or not.
Right at a minimum it should detect that do_usb_start succeeds. E.g. on an otg port without an otg -> usb-host cable plugged in it will not succeed.
Got it..Then discard this patch. Thanks for pointing out.
Best Regards, Jaehoon Chung
Regards,
Hans
participants (4)
-
Hans de Goede
-
Jaehoon Chung
-
Minkyu Kang
-
Simon Glass