diff options
Diffstat (limited to 'Documentation/usb')
| -rw-r--r-- | Documentation/usb/gadget-testing.rst | 21 | ||||
| -rw-r--r-- | Documentation/usb/mass-storage.rst | 9 | ||||
| -rw-r--r-- | Documentation/usb/usbip_protocol.rst | 13 | ||||
| -rw-r--r-- | Documentation/usb/usbmon.rst | 2 |
4 files changed, 32 insertions, 13 deletions
diff --git a/Documentation/usb/gadget-testing.rst b/Documentation/usb/gadget-testing.rst index c18113077889..2278c9ffb74a 100644 --- a/Documentation/usb/gadget-testing.rst +++ b/Documentation/usb/gadget-testing.rst @@ -333,6 +333,12 @@ In each lun directory there are the following attribute files: being a CD-ROM. nofua Flag specifying that FUA flag in SCSI WRITE(10,12) + forced_eject This write-only file is useful only when + the function is active. It causes the backing + file to be forcibly detached from the LUN, + regardless of whether the host has allowed it. + Any non-zero number of bytes written will + result in ejection. =============== ============================================== Testing the MASS STORAGE function @@ -726,7 +732,7 @@ The uac2 function provides these attributes in its function directory: ================ ==================================================== c_chmask capture channel mask - c_srate capture sampling rate + c_srate list of capture sampling rates (comma-separated) c_ssize capture sample size (bytes) c_sync capture synchronization type (async/adaptive) c_mute_present capture mute control enable @@ -734,17 +740,20 @@ The uac2 function provides these attributes in its function directory: c_volume_min capture volume control min value (in 1/256 dB) c_volume_max capture volume control max value (in 1/256 dB) c_volume_res capture volume control resolution (in 1/256 dB) + c_hs_bint capture bInterval for HS/SS (1-4: fixed, 0: auto) fb_max maximum extra bandwidth in async mode p_chmask playback channel mask - p_srate playback sampling rate + p_srate list of playback sampling rates (comma-separated) p_ssize playback sample size (bytes) p_mute_present playback mute control enable p_volume_present playback volume control enable p_volume_min playback volume control min value (in 1/256 dB) p_volume_max playback volume control max value (in 1/256 dB) p_volume_res playback volume control resolution (in 1/256 dB) + p_hs_bint playback bInterval for HS/SS (1-4: fixed, 0: auto) req_number the number of pre-allocated request for both capture and playback + function_name name of the interface ================ ==================================================== The attributes have sane default values. @@ -784,6 +793,7 @@ The uvc function provides these attributes in its function directory: streaming_maxpacket maximum packet size this endpoint is capable of sending or receiving when this configuration is selected + function_name name of the interface =================== ================================================ There are also "control" and "streaming" subdirectories, each of which contain @@ -916,7 +926,7 @@ The uac1 function provides these attributes in its function directory: ================ ==================================================== c_chmask capture channel mask - c_srate capture sampling rate + c_srate list of capture sampling rates (comma-separated) c_ssize capture sample size (bytes) c_mute_present capture mute control enable c_volume_present capture volume control enable @@ -924,15 +934,16 @@ The uac1 function provides these attributes in its function directory: c_volume_max capture volume control max value (in 1/256 dB) c_volume_res capture volume control resolution (in 1/256 dB) p_chmask playback channel mask - p_srate playback sampling rate + p_srate list of playback sampling rates (comma-separated) p_ssize playback sample size (bytes) p_mute_present playback mute control enable p_volume_present playback volume control enable p_volume_min playback volume control min value (in 1/256 dB) p_volume_max playback volume control max value (in 1/256 dB) p_volume_res playback volume control resolution (in 1/256 dB) - req_number the number of pre-allocated request for both capture + req_number the number of pre-allocated requests for both capture and playback + function_name name of the interface ================ ==================================================== The attributes have sane default values. diff --git a/Documentation/usb/mass-storage.rst b/Documentation/usb/mass-storage.rst index d181b47c3cb6..f399ec631599 100644 --- a/Documentation/usb/mass-storage.rst +++ b/Documentation/usb/mass-storage.rst @@ -181,6 +181,15 @@ sysfs entries Reflects the state of nofua flag for given logical unit. It can be read and written. + - forced_eject + + When written into, it causes the backing file to be forcibly + detached from the LUN, regardless of whether the host has allowed + it. The content doesn't matter, any non-zero number of bytes + written will result in ejection. + + Can not be read. + Other then those, as usual, the values of module parameters can be read from /sys/module/g_mass_storage/parameters/* files. diff --git a/Documentation/usb/usbip_protocol.rst b/Documentation/usb/usbip_protocol.rst index 0b8541fda4d8..adc158967cc6 100644 --- a/Documentation/usb/usbip_protocol.rst +++ b/Documentation/usb/usbip_protocol.rst @@ -340,13 +340,12 @@ USBIP_CMD_SUBMIT: | 0 | 20 | usbip_header_basic, 'command' shall be 0x00000001 | +-----------+--------+---------------------------------------------------+ | 0x14 | 4 | transfer_flags: possible values depend on the | -| | | URB transfer_flags (refer to URB doc in | -| | | Documentation/driver-api/usb/URB.rst) | -| | | but with URB_NO_TRANSFER_DMA_MAP masked. Refer to | -| | | function usbip_pack_cmd_submit and function | -| | | tweak_transfer_flags in drivers/usb/usbip/ | -| | | usbip_common.c. The following fields may also ref | -| | | to function usbip_pack_cmd_submit and URB doc | +| | | USBIP_URB transfer_flags. | +| | | Refer to include/uapi/linux/usbip.h and | +| | | Documentation/driver-api/usb/URB.rst. | +| | | Refer to usbip_pack_cmd_submit() and | +| | | tweak_transfer_flags() in drivers/usb/usbip/ | +| | | usbip_common.c. | +-----------+--------+---------------------------------------------------+ | 0x18 | 4 | transfer_buffer_length: | | | | use URB transfer_buffer_length | diff --git a/Documentation/usb/usbmon.rst b/Documentation/usb/usbmon.rst index b0bd51080799..6d5ec1e62d09 100644 --- a/Documentation/usb/usbmon.rst +++ b/Documentation/usb/usbmon.rst @@ -42,7 +42,7 @@ if usbmon is built into the kernel:: # modprobe usbmon # -Verify that bus sockets are present: +Verify that bus sockets are present:: # ls /sys/kernel/debug/usb/usbmon 0s 0u 1s 1t 1u 2s 2t 2u 3s 3t 3u 4s 4t 4u |